package time

Import Path
	time (on go.dev)

Dependency Relation
	imports 8 packages, and imported by 48 packages

Involved Source Files

	    format.go
	    format_rfc3339.go
	    sleep.go
	    sys_unix.go
	    tick.go
	  d time.go
		Package time provides functionality for measuring and displaying time.
		
		The calendrical calculations always assume a Gregorian calendar, with
		no leap seconds.
		
		# Monotonic Clocks
		
		Operating systems provide both a “wall clock,” which is subject to
		changes for clock synchronization, and a “monotonic clock,” which is
		not. The general rule is that the wall clock is for telling time and
		the monotonic clock is for measuring time. Rather than split the API,
		in this package the Time returned by [time.Now] contains both a wall
		clock reading and a monotonic clock reading; later time-telling
		operations use the wall clock reading, but later time-measuring
		operations, specifically comparisons and subtractions, use the
		monotonic clock reading.
		
		For example, this code always computes a positive elapsed time of
		approximately 20 milliseconds, even if the wall clock is changed during
		the operation being timed:
		
			start := time.Now()
			... operation that takes 20 milliseconds ...
			t := time.Now()
			elapsed := t.Sub(start)
		
		Other idioms, such as [time.Since](start), [time.Until](deadline), and
		time.Now().Before(deadline), are similarly robust against wall clock
		resets.
		
		The rest of this section gives the precise details of how operations
		use monotonic clocks, but understanding those details is not required
		to use this package.
		
		The Time returned by time.Now contains a monotonic clock reading.
		If Time t has a monotonic clock reading, t.Add adds the same duration to
		both the wall clock and monotonic clock readings to compute the result.
		Because t.AddDate(y, m, d), t.Round(d), and t.Truncate(d) are wall time
		computations, they always strip any monotonic clock reading from their results.
		Because t.In, t.Local, and t.UTC are used for their effect on the interpretation
		of the wall time, they also strip any monotonic clock reading from their results.
		The canonical way to strip a monotonic clock reading is to use t = t.Round(0).
		
		If Times t and u both contain monotonic clock readings, the operations
		t.After(u), t.Before(u), t.Equal(u), t.Compare(u), and t.Sub(u) are carried out
		using the monotonic clock readings alone, ignoring the wall clock
		readings. If either t or u contains no monotonic clock reading, these
		operations fall back to using the wall clock readings.
		
		On some systems the monotonic clock will stop if the computer goes to sleep.
		On such a system, t.Sub(u) may not accurately reflect the actual
		time that passed between t and u. The same applies to other functions and
		methods that subtract times, such as [Since], [Until], [Before], [After],
		[Add], [Sub], [Equal] and [Compare]. In some cases, you may need to strip
		the monotonic clock to get accurate results.
		
		Because the monotonic clock reading has no meaning outside
		the current process, the serialized forms generated by t.GobEncode,
		t.MarshalBinary, t.MarshalJSON, and t.MarshalText omit the monotonic
		clock reading, and t.Format provides no format for it. Similarly, the
		constructors [time.Date], [time.Parse], [time.ParseInLocation], and [time.Unix],
		as well as the unmarshalers t.GobDecode, t.UnmarshalBinary.
		t.UnmarshalJSON, and t.UnmarshalText always create times with
		no monotonic clock reading.
		
		The monotonic clock reading exists only in [Time] values. It is not
		a part of [Duration] values or the Unix times returned by t.Unix and
		friends.
		
		Note that the Go == operator compares not just the time instant but
		also the [Location] and the monotonic clock reading. See the
		documentation for the Time type for a discussion of equality
		testing for Time values.
		
		For debugging, the result of t.String does include the monotonic
		clock reading if present. If t != u because of different monotonic clock readings,
		that difference will be visible when printing t.String() and u.String().
		
		# Timer Resolution
		
		[Timer] resolution varies depending on the Go runtime, the operating system
		and the underlying hardware.
		On Unix, the resolution is ~1ms.
		On Windows version 1803 and newer, the resolution is ~0.5ms.
		On older Windows versions, the default resolution is ~16ms, but
		a higher resolution may be requested using [golang.org/x/sys/windows.TimeBeginPeriod].

	    zoneinfo.go
	    zoneinfo_goroot.go
	    zoneinfo_read.go
	    zoneinfo_unix.go
Code Examples

	After
		package main
		
		import (
			"fmt"
			"time"
		)
		
		var c chan int
		
		func handle(int) {}
		
		func main() {
			select {
			case m := <-c:
				handle(m)
			case <-time.After(10 * time.Second):
				fmt.Println("timed out")
			}
		}

	Date
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			t := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
			fmt.Printf("Go launched at %s\n", t.Local())
		}

	Duration
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func expensiveCall() {}
		
		func main() {
			t0 := time.Now()
			expensiveCall()
			t1 := time.Now()
			fmt.Printf("The call took %v to run.\n", t1.Sub(t0))
		}

	Duration_Hours
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			h, _ := time.ParseDuration("4h30m")
			fmt.Printf("I've got %.1f hours of work left.", h.Hours())
		}

	Duration_Microseconds
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			u, _ := time.ParseDuration("1s")
			fmt.Printf("One second is %d microseconds.\n", u.Microseconds())
		}

	Duration_Milliseconds
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			u, _ := time.ParseDuration("1s")
			fmt.Printf("One second is %d milliseconds.\n", u.Milliseconds())
		}

	Duration_Minutes
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			m, _ := time.ParseDuration("1h30m")
			fmt.Printf("The movie is %.0f minutes long.", m.Minutes())
		}

	Duration_Nanoseconds
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			u, _ := time.ParseDuration("1µs")
			fmt.Printf("One microsecond is %d nanoseconds.\n", u.Nanoseconds())
		}

	Duration_Round
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			d, err := time.ParseDuration("1h15m30.918273645s")
			if err != nil {
				panic(err)
			}
		
			round := []time.Duration{
				time.Nanosecond,
				time.Microsecond,
				time.Millisecond,
				time.Second,
				2 * time.Second,
				time.Minute,
				10 * time.Minute,
				time.Hour,
			}
		
			for _, r := range round {
				fmt.Printf("d.Round(%6s) = %s\n", r, d.Round(r).String())
			}
		}

	Duration_Seconds
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			m, _ := time.ParseDuration("1m30s")
			fmt.Printf("Take off in t-%.0f seconds.", m.Seconds())
		}

	Duration_String
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			fmt.Println(1*time.Hour + 2*time.Minute + 300*time.Millisecond)
			fmt.Println(300 * time.Millisecond)
		}

	Duration_Truncate
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			d, err := time.ParseDuration("1h15m30.918273645s")
			if err != nil {
				panic(err)
			}
		
			trunc := []time.Duration{
				time.Nanosecond,
				time.Microsecond,
				time.Millisecond,
				time.Second,
				2 * time.Second,
				time.Minute,
				10 * time.Minute,
				time.Hour,
			}
		
			for _, t := range trunc {
				fmt.Printf("d.Truncate(%6s) = %s\n", t, d.Truncate(t).String())
			}
		}

	FixedZone
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			loc := time.FixedZone("UTC-8", -8*60*60)
			t := time.Date(2009, time.November, 10, 23, 0, 0, 0, loc)
			fmt.Println("The time is:", t.Format(time.RFC822))
		}

	LoadLocation
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			location, err := time.LoadLocation("America/Los_Angeles")
			if err != nil {
				panic(err)
			}
		
			timeInUTC := time.Date(2018, 8, 30, 12, 0, 0, 0, time.UTC)
			fmt.Println(timeInUTC.In(location))
		}

	Location
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			// China doesn't have daylight saving. It uses a fixed 8 hour offset from UTC.
			secondsEastOfUTC := int((8 * time.Hour).Seconds())
			beijing := time.FixedZone("Beijing Time", secondsEastOfUTC)
		
			// If the system has a timezone database present, it's possible to load a location
			// from that, e.g.:
			//    newYork, err := time.LoadLocation("America/New_York")
		
			// Creating a time requires a location. Common locations are time.Local and time.UTC.
			timeInUTC := time.Date(2009, 1, 1, 12, 0, 0, 0, time.UTC)
			sameTimeInBeijing := time.Date(2009, 1, 1, 20, 0, 0, 0, beijing)
		
			// Although the UTC clock time is 1200 and the Beijing clock time is 2000, Beijing is
			// 8 hours ahead so the two dates actually represent the same instant.
			timesAreEqual := timeInUTC.Equal(sameTimeInBeijing)
			fmt.Println(timesAreEqual)
		
		}

	Month
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			_, month, day := time.Now().Date()
			if month == time.November && day == 10 {
				fmt.Println("Happy Go day!")
			}
		}

	NewTicker
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			ticker := time.NewTicker(time.Second)
			defer ticker.Stop()
			done := make(chan bool)
			go func() {
				time.Sleep(10 * time.Second)
				done <- true
			}()
			for {
				select {
				case <-done:
					fmt.Println("Done!")
					return
				case t := <-ticker.C:
					fmt.Println("Current time: ", t)
				}
			}
		}

	Parse
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			// See the example for Time.Format for a thorough description of how
			// to define the layout string to parse a time.Time value; Parse and
			// Format use the same model to describe their input and output.
		
			// longForm shows by example how the reference time would be represented in
			// the desired layout.
			const longForm = "Jan 2, 2006 at 3:04pm (MST)"
			t, _ := time.Parse(longForm, "Feb 3, 2013 at 7:54pm (PST)")
			fmt.Println(t)
		
			// shortForm is another way the reference time would be represented
			// in the desired layout; it has no time zone present.
			// Note: without explicit zone, returns time in UTC.
			const shortForm = "2006-Jan-02"
			t, _ = time.Parse(shortForm, "2013-Feb-03")
			fmt.Println(t)
		
			// Some valid layouts are invalid time values, due to format specifiers
			// such as _ for space padding and Z for zone information.
			// For example the RFC3339 layout 2006-01-02T15:04:05Z07:00
			// contains both Z and a time zone offset in order to handle both valid options:
			// 2006-01-02T15:04:05Z
			// 2006-01-02T15:04:05+07:00
			t, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
			fmt.Println(t)
			t, _ = time.Parse(time.RFC3339, "2006-01-02T15:04:05+07:00")
			fmt.Println(t)
			_, err := time.Parse(time.RFC3339, time.RFC3339)
			fmt.Println("error", err) // Returns an error as the layout is not a valid time value
		
		}

	ParseDuration
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			hours, _ := time.ParseDuration("10h")
			complex, _ := time.ParseDuration("1h10m10s")
			micro, _ := time.ParseDuration("1µs")
			// The package also accepts the incorrect but common prefix u for micro.
			micro2, _ := time.ParseDuration("1us")
		
			fmt.Println(hours)
			fmt.Println(complex)
			fmt.Printf("There are %.0f seconds in %v.\n", complex.Seconds(), complex)
			fmt.Printf("There are %d nanoseconds in %v.\n", micro.Nanoseconds(), micro)
			fmt.Printf("There are %6.2e seconds in %v.\n", micro2.Seconds(), micro2)
		}

	ParseInLocation
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			loc, _ := time.LoadLocation("Europe/Berlin")
		
			// This will look for the name CEST in the Europe/Berlin time zone.
			const longForm = "Jan 2, 2006 at 3:04pm (MST)"
			t, _ := time.ParseInLocation(longForm, "Jul 9, 2012 at 5:02am (CEST)", loc)
			fmt.Println(t)
		
			// Note: without explicit zone, returns time in given location.
			const shortForm = "2006-Jan-02"
			t, _ = time.ParseInLocation(shortForm, "2012-Jul-09", loc)
			fmt.Println(t)
		
		}

	Sleep
		package main
		
		import (
			"time"
		)
		
		func main() {
			time.Sleep(100 * time.Millisecond)
		}

	Tick
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func statusUpdate() string { return "" }
		
		func main() {
			c := time.Tick(5 * time.Second)
			for next := range c {
				fmt.Printf("%v %s\n", next, statusUpdate())
			}
		}

	Time_Add
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			start := time.Date(2009, 1, 1, 12, 0, 0, 0, time.UTC)
			afterTenSeconds := start.Add(time.Second * 10)
			afterTenMinutes := start.Add(time.Minute * 10)
			afterTenHours := start.Add(time.Hour * 10)
			afterTenDays := start.Add(time.Hour * 24 * 10)
		
			fmt.Printf("start = %v\n", start)
			fmt.Printf("start.Add(time.Second * 10) = %v\n", afterTenSeconds)
			fmt.Printf("start.Add(time.Minute * 10) = %v\n", afterTenMinutes)
			fmt.Printf("start.Add(time.Hour * 10) = %v\n", afterTenHours)
			fmt.Printf("start.Add(time.Hour * 24 * 10) = %v\n", afterTenDays)
		
		}

	Time_AddDate
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			start := time.Date(2023, 03, 25, 12, 0, 0, 0, time.UTC)
			oneDayLater := start.AddDate(0, 0, 1)
			dayDuration := oneDayLater.Sub(start)
			oneMonthLater := start.AddDate(0, 1, 0)
			oneYearLater := start.AddDate(1, 0, 0)
		
			zurich, err := time.LoadLocation("Europe/Zurich")
			if err != nil {
				panic(err)
			}
			// This was the day before a daylight saving time transition in Zürich.
			startZurich := time.Date(2023, 03, 25, 12, 0, 0, 0, zurich)
			oneDayLaterZurich := startZurich.AddDate(0, 0, 1)
			dayDurationZurich := oneDayLaterZurich.Sub(startZurich)
		
			fmt.Printf("oneDayLater: start.AddDate(0, 0, 1) = %v\n", oneDayLater)
			fmt.Printf("oneMonthLater: start.AddDate(0, 1, 0) = %v\n", oneMonthLater)
			fmt.Printf("oneYearLater: start.AddDate(1, 0, 0) = %v\n", oneYearLater)
			fmt.Printf("oneDayLaterZurich: startZurich.AddDate(0, 0, 1) = %v\n", oneDayLaterZurich)
			fmt.Printf("Day duration in UTC: %v | Day duration in Zürich: %v\n", dayDuration, dayDurationZurich)
		
		}

	Time_After
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			year2000 := time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
			year3000 := time.Date(3000, 1, 1, 0, 0, 0, 0, time.UTC)
		
			isYear3000AfterYear2000 := year3000.After(year2000) // True
			isYear2000AfterYear3000 := year2000.After(year3000) // False
		
			fmt.Printf("year3000.After(year2000) = %v\n", isYear3000AfterYear2000)
			fmt.Printf("year2000.After(year3000) = %v\n", isYear2000AfterYear3000)
		
		}

	Time_AppendFormat
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			t := time.Date(2017, time.November, 4, 11, 0, 0, 0, time.UTC)
			text := []byte("Time: ")
		
			text = t.AppendFormat(text, time.Kitchen)
			fmt.Println(string(text))
		
		}

	Time_Before
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			year2000 := time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
			year3000 := time.Date(3000, 1, 1, 0, 0, 0, 0, time.UTC)
		
			isYear2000BeforeYear3000 := year2000.Before(year3000) // True
			isYear3000BeforeYear2000 := year3000.Before(year2000) // False
		
			fmt.Printf("year2000.Before(year3000) = %v\n", isYear2000BeforeYear3000)
			fmt.Printf("year3000.Before(year2000) = %v\n", isYear3000BeforeYear2000)
		
		}

	Time_Date
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			d := time.Date(2000, 2, 1, 12, 30, 0, 0, time.UTC)
			year, month, day := d.Date()
		
			fmt.Printf("year = %v\n", year)
			fmt.Printf("month = %v\n", month)
			fmt.Printf("day = %v\n", day)
		
		}

	Time_Day
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			d := time.Date(2000, 2, 1, 12, 30, 0, 0, time.UTC)
			day := d.Day()
		
			fmt.Printf("day = %v\n", day)
		
		}

	Time_Equal
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			secondsEastOfUTC := int((8 * time.Hour).Seconds())
			beijing := time.FixedZone("Beijing Time", secondsEastOfUTC)
		
			// Unlike the equal operator, Equal is aware that d1 and d2 are the
			// same instant but in different time zones.
			d1 := time.Date(2000, 2, 1, 12, 30, 0, 0, time.UTC)
			d2 := time.Date(2000, 2, 1, 20, 30, 0, 0, beijing)
		
			datesEqualUsingEqualOperator := d1 == d2
			datesEqualUsingFunction := d1.Equal(d2)
		
			fmt.Printf("datesEqualUsingEqualOperator = %v\n", datesEqualUsingEqualOperator)
			fmt.Printf("datesEqualUsingFunction = %v\n", datesEqualUsingFunction)
		
		}

	Time_Format
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			// Parse a time value from a string in the standard Unix format.
			t, err := time.Parse(time.UnixDate, "Wed Feb 25 11:06:39 PST 2015")
			if err != nil { // Always check errors even if they should not happen.
				panic(err)
			}
		
			tz, err := time.LoadLocation("Asia/Shanghai")
			if err != nil { // Always check errors even if they should not happen.
				panic(err)
			}
		
			// time.Time's Stringer method is useful without any format.
			fmt.Println("default format:", t)
		
			// Predefined constants in the package implement common layouts.
			fmt.Println("Unix format:", t.Format(time.UnixDate))
		
			// The time zone attached to the time value affects its output.
			fmt.Println("Same, in UTC:", t.UTC().Format(time.UnixDate))
		
			fmt.Println("in Shanghai with seconds:", t.In(tz).Format("2006-01-02T15:04:05 -070000"))
		
			fmt.Println("in Shanghai with colon seconds:", t.In(tz).Format("2006-01-02T15:04:05 -07:00:00"))
		
			// The rest of this function demonstrates the properties of the
			// layout string used in the format.
		
			// The layout string used by the Parse function and Format method
			// shows by example how the reference time should be represented.
			// We stress that one must show how the reference time is formatted,
			// not a time of the user's choosing. Thus each layout string is a
			// representation of the time stamp,
			//	Jan 2 15:04:05 2006 MST
			// An easy way to remember this value is that it holds, when presented
			// in this order, the values (lined up with the elements above):
			//	  1 2  3  4  5    6  -7
			// There are some wrinkles illustrated below.
		
			// Most uses of Format and Parse use constant layout strings such as
			// the ones defined in this package, but the interface is flexible,
			// as these examples show.
		
			// Define a helper function to make the examples' output look nice.
			do := func(name, layout, want string) {
				got := t.Format(layout)
				if want != got {
					fmt.Printf("error: for %q got %q; expected %q\n", layout, got, want)
					return
				}
				fmt.Printf("%-16s %q gives %q\n", name, layout, got)
			}
		
			// Print a header in our output.
			fmt.Printf("\nFormats:\n\n")
		
			// Simple starter examples.
			do("Basic full date", "Mon Jan 2 15:04:05 MST 2006", "Wed Feb 25 11:06:39 PST 2015")
			do("Basic short date", "2006/01/02", "2015/02/25")
		
			// The hour of the reference time is 15, or 3PM. The layout can express
			// it either way, and since our value is the morning we should see it as
			// an AM time. We show both in one format string. Lower case too.
			do("AM/PM", "3PM==3pm==15h", "11AM==11am==11h")
		
			// When parsing, if the seconds value is followed by a decimal point
			// and some digits, that is taken as a fraction of a second even if
			// the layout string does not represent the fractional second.
			// Here we add a fractional second to our time value used above.
			t, err = time.Parse(time.UnixDate, "Wed Feb 25 11:06:39.1234 PST 2015")
			if err != nil {
				panic(err)
			}
			// It does not appear in the output if the layout string does not contain
			// a representation of the fractional second.
			do("No fraction", time.UnixDate, "Wed Feb 25 11:06:39 PST 2015")
		
			// Fractional seconds can be printed by adding a run of 0s or 9s after
			// a decimal point in the seconds value in the layout string.
			// If the layout digits are 0s, the fractional second is of the specified
			// width. Note that the output has a trailing zero.
			do("0s for fraction", "15:04:05.00000", "11:06:39.12340")
		
			// If the fraction in the layout is 9s, trailing zeros are dropped.
			do("9s for fraction", "15:04:05.99999999", "11:06:39.1234")
		
		}

	Time_Format_pad
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			// Parse a time value from a string in the standard Unix format.
			t, err := time.Parse(time.UnixDate, "Sat Mar 7 11:06:39 PST 2015")
			if err != nil { // Always check errors even if they should not happen.
				panic(err)
			}
		
			// Define a helper function to make the examples' output look nice.
			do := func(name, layout, want string) {
				got := t.Format(layout)
				if want != got {
					fmt.Printf("error: for %q got %q; expected %q\n", layout, got, want)
					return
				}
				fmt.Printf("%-16s %q gives %q\n", name, layout, got)
			}
		
			// The predefined constant Unix uses an underscore to pad the day.
			do("Unix", time.UnixDate, "Sat Mar  7 11:06:39 PST 2015")
		
			// For fixed-width printing of values, such as the date, that may be one or
			// two characters (7 vs. 07), use an _ instead of a space in the layout string.
			// Here we print just the day, which is 2 in our layout string and 7 in our
			// value.
			do("No pad", "<2>", "<7>")
		
			// An underscore represents a space pad, if the date only has one digit.
			do("Spaces", "<_2>", "< 7>")
		
			// A "0" indicates zero padding for single-digit values.
			do("Zeros", "<02>", "<07>")
		
			// If the value is already the right width, padding is not used.
			// For instance, the second (05 in the reference time) in our value is 39,
			// so it doesn't need padding, but the minutes (04, 06) does.
			do("Suppressed pad", "04:05", "06:39")
		
		}

	Time_GoString
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			t := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
			fmt.Println(t.GoString())
			t = t.Add(1 * time.Minute)
			fmt.Println(t.GoString())
			t = t.AddDate(0, 1, 0)
			fmt.Println(t.GoString())
			t, _ = time.Parse("Jan 2, 2006 at 3:04pm (MST)", "Feb 3, 2013 at 7:54pm (UTC)")
			fmt.Println(t.GoString())
		
		}

	Time_Round
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			t := time.Date(0, 0, 0, 12, 15, 30, 918273645, time.UTC)
			round := []time.Duration{
				time.Nanosecond,
				time.Microsecond,
				time.Millisecond,
				time.Second,
				2 * time.Second,
				time.Minute,
				10 * time.Minute,
				time.Hour,
			}
		
			for _, d := range round {
				fmt.Printf("t.Round(%6s) = %s\n", d, t.Round(d).Format("15:04:05.999999999"))
			}
		}

	Time_String
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			timeWithNanoseconds := time.Date(2000, 2, 1, 12, 13, 14, 15, time.UTC)
			withNanoseconds := timeWithNanoseconds.String()
		
			timeWithoutNanoseconds := time.Date(2000, 2, 1, 12, 13, 14, 0, time.UTC)
			withoutNanoseconds := timeWithoutNanoseconds.String()
		
			fmt.Printf("withNanoseconds = %v\n", string(withNanoseconds))
			fmt.Printf("withoutNanoseconds = %v\n", string(withoutNanoseconds))
		
		}

	Time_Sub
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			start := time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
			end := time.Date(2000, 1, 1, 12, 0, 0, 0, time.UTC)
		
			difference := end.Sub(start)
			fmt.Printf("difference = %v\n", difference)
		
		}

	Time_Truncate
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			t, _ := time.Parse("2006 Jan 02 15:04:05", "2012 Dec 07 12:15:30.918273645")
			trunc := []time.Duration{
				time.Nanosecond,
				time.Microsecond,
				time.Millisecond,
				time.Second,
				2 * time.Second,
				time.Minute,
				10 * time.Minute,
			}
		
			for _, d := range trunc {
				fmt.Printf("t.Truncate(%5s) = %s\n", d, t.Truncate(d).Format("15:04:05.999999999"))
			}
			// To round to the last midnight in the local timezone, create a new Date.
			midnight := time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.Local)
			_ = midnight
		
		}

	Time_Unix
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			// 1 billion seconds of Unix, three ways.
			fmt.Println(time.Unix(1e9, 0).UTC())     // 1e9 seconds
			fmt.Println(time.Unix(0, 1e18).UTC())    // 1e18 nanoseconds
			fmt.Println(time.Unix(2e9, -1e18).UTC()) // 2e9 seconds - 1e18 nanoseconds
		
			t := time.Date(2001, time.September, 9, 1, 46, 40, 0, time.UTC)
			fmt.Println(t.Unix())     // seconds since 1970
			fmt.Println(t.UnixNano()) // nanoseconds since 1970
		
		}

	Unix
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			unixTime := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
			fmt.Println(unixTime.Unix())
			t := time.Unix(unixTime.Unix(), 0).UTC()
			fmt.Println(t)
		
		}

	UnixMicro
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			umt := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
			fmt.Println(umt.UnixMicro())
			t := time.UnixMicro(umt.UnixMicro()).UTC()
			fmt.Println(t)
		
		}

	UnixMilli
		package main
		
		import (
			"fmt"
			"time"
		)
		
		func main() {
			umt := time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)
			fmt.Println(umt.UnixMilli())
			t := time.UnixMilli(umt.UnixMilli()).UTC()
			fmt.Println(t)
		
		}


Package-Level Type Names (total 8)

	/* sort by: alphabet | popularity */
	 type Duration int64 (basic type)
		A Duration represents the elapsed time between two instants
		as an int64 nanosecond count. The representation limits the
		largest representable duration to approximately 290 years.

		Methods (total 10)
			( Duration) Abs() Duration
				Abs returns the absolute value of d.
				As a special case, [math.MinInt64] is converted to [math.MaxInt64].

			( Duration) Hours() float64
				Hours returns the duration as a floating point number of hours.

			( Duration) Microseconds() int64
				Microseconds returns the duration as an integer microsecond count.

			( Duration) Milliseconds() int64
				Milliseconds returns the duration as an integer millisecond count.

			( Duration) Minutes() float64
				Minutes returns the duration as a floating point number of minutes.

			( Duration) Nanoseconds() int64
				Nanoseconds returns the duration as an integer nanosecond count.

			( Duration) Round(m Duration) Duration
				Round returns the result of rounding d to the nearest multiple of m.
				The rounding behavior for halfway values is to round away from zero.
				If the result exceeds the maximum (or minimum)
				value that can be stored in a [Duration],
				Round returns the maximum (or minimum) duration.
				If m <= 0, Round returns d unchanged.

			( Duration) Seconds() float64
				Seconds returns the duration as a floating point number of seconds.

			( Duration) String() string
				String returns a string representing the duration in the form "72h3m0.5s".
				Leading zero units are omitted. As a special case, durations less than one
				second format use a smaller unit (milli-, micro-, or nanoseconds) to ensure
				that the leading digit is non-zero. The zero duration formats as 0s.

			( Duration) Truncate(m Duration) Duration
				Truncate returns the result of rounding d toward zero to a multiple of m.
				If m <= 0, Truncate returns d unchanged.

		Implements (at least 2)
			 Duration : expvar.Var
			 Duration : fmt.Stringer
		As Outputs Of (at least 17)
			func ParseDuration(s string) (Duration, error)
			func Since(t Time) Duration
			func Until(t Time) Duration
			func Duration.Abs() Duration
			func Duration.Round(m Duration) Duration
			func Duration.Truncate(m Duration) Duration
			func Time.Sub(u Time) Duration
			func flag.Duration(name string, value Duration, usage string) *Duration
			func flag.(*FlagSet).Duration(name string, value Duration, usage string) *Duration
			func internal/trace.GoroutineExecStats.NonOverlappingStats() map[string]Duration
			func internal/trace.GoroutineExecStats.UnknownTime() Duration
			func internal/trace.Time.Sub(t0 trace.Time) Duration
			func internal/trace/traceviewer.(*TimeHistogram).BucketMin(bucket int) Duration
			func log/slog.Value.Duration() Duration
			func os.(*ProcessState).SystemTime() Duration
			func os.(*ProcessState).UserTime() Duration
			func testing.(*B).Elapsed() Duration
		As Inputs Of (at least 39)
			func After(d Duration) <-chan Time
			func AfterFunc(d Duration, f func()) *Timer
			func NewTicker(d Duration) *Ticker
			func NewTimer(d Duration) *Timer
			func Sleep(d Duration)
			func Tick(d Duration) <-chan Time
			func Duration.Round(m Duration) Duration
			func Duration.Truncate(m Duration) Duration
			func (*Ticker).Reset(d Duration)
			func Time.Add(d Duration) Time
			func Time.Round(d Duration) Time
			func Time.Truncate(d Duration) Time
			func (*Timer).Reset(d Duration) bool
			func context.WithTimeout(parent context.Context, timeout Duration) (context.Context, context.CancelFunc)
			func context.WithTimeoutCause(parent context.Context, timeout Duration, cause error) (context.Context, context.CancelFunc)
			func database/sql.(*DB).SetConnMaxIdleTime(d Duration)
			func database/sql.(*DB).SetConnMaxLifetime(d Duration)
			func flag.Duration(name string, value Duration, usage string) *Duration
			func flag.DurationVar(p *Duration, name string, value Duration, usage string)
			func flag.DurationVar(p *Duration, name string, value Duration, usage string)
			func flag.(*FlagSet).Duration(name string, value Duration, usage string) *Duration
			func flag.(*FlagSet).DurationVar(p *Duration, name string, value Duration, usage string)
			func flag.(*FlagSet).DurationVar(p *Duration, name string, value Duration, usage string)
			func internal/trace.(*MMUCurve).Examples(window Duration, n int) (worst []trace.UtilWindow)
			func internal/trace.(*MMUCurve).MMU(window Duration) (mmu float64)
			func internal/trace.(*MMUCurve).MUD(window Duration, quantiles []float64) []float64
			func internal/trace/traceviewer.NewEmitter(c traceviewer.TraceConsumer, rangeStart, rangeEnd Duration) *traceviewer.Emitter
			func internal/trace/traceviewer.(*Emitter).GoroutineTransition(ts Duration, from, to traceviewer.GState)
			func internal/trace/traceviewer.(*Emitter).HeapAlloc(ts Duration, v uint64)
			func internal/trace/traceviewer.(*Emitter).HeapGoal(ts Duration, v uint64)
			func internal/trace/traceviewer.(*Emitter).IncThreadStateCount(ts Duration, state traceviewer.ThreadState, delta int64)
			func internal/trace/traceviewer.(*TimeHistogram).Add(d Duration)
			func log/slog.Duration(key string, v Duration) slog.Attr
			func log/slog.DurationValue(v Duration) slog.Value
			func net.DialTimeout(network, address string, timeout Duration) (net.Conn, error)
			func net.(*TCPConn).SetKeepAlivePeriod(d Duration) error
			func net/http.TimeoutHandler(h http.Handler, dt Duration, msg string) http.Handler
			func testing/internal/testdeps.TestDeps.CoordinateFuzzing(timeout Duration, limit int64, minimizeTimeout Duration, minimizeLimit int64, parallel int, seed []fuzz.CorpusEntry, types []reflect.Type, corpusDir, cacheDir string) (err error)
			func testing/internal/testdeps.TestDeps.CoordinateFuzzing(timeout Duration, limit int64, minimizeTimeout Duration, minimizeLimit int64, parallel int, seed []fuzz.CorpusEntry, types []reflect.Type, corpusDir, cacheDir string) (err error)
		As Types Of (total 6)
			const Hour
			const Microsecond
			const Millisecond
			const Minute
			const Nanosecond
			const Second

	 type Location (struct)
		A Location maps time instants to the zone in use at that time.
		Typically, the Location represents the collection of time offsets
		in use in a geographical area. For many Locations the time offset varies
		depending on whether daylight savings time is in use at the time instant.
		
		Location is used to provide a time zone in a printed Time value and for
		calculations involving intervals that may cross daylight savings time
		boundaries.

		Methods (only one)
			(*Location) String() string
				String returns a descriptive name for the time zone information,
				corresponding to the name argument to [LoadLocation] or [FixedZone].

		Implements (at least 2)
			*Location : expvar.Var
			*Location : fmt.Stringer
		As Outputs Of (at least 4)
			func FixedZone(name string, offset int) *Location
			func LoadLocation(name string) (*Location, error)
			func LoadLocationFromTZData(name string, data []byte) (*Location, error)
			func Time.Location() *Location
		As Inputs Of (at least 3)
			func Date(year int, month Month, day, hour, min, sec, nsec int, loc *Location) Time
			func ParseInLocation(layout, value string, loc *Location) (Time, error)
			func Time.In(loc *Location) Time
		As Types Of (total 2)
			  var Local *Location
			  var UTC *Location

	 type Month int (basic type)
		A Month specifies a month of the year (January = 1, ...).

		Methods (only one)
			( Month) String() string
				String returns the English name of the month ("January", "February", ...).

		Implements (at least 2)
			 Month : expvar.Var
			 Month : fmt.Stringer
		As Outputs Of (at least 2)
			func Time.Date() (year int, month Month, day int)
			func Time.Month() Month
		As Inputs Of (at least one exported)
			func Date(year int, month Month, day, hour, min, sec, nsec int, loc *Location) Time
		As Types Of (total 12)
			const April
			const August
			const December
			const February
			const January
			const July
			const June
			const March
			const May
			const November
			const October
			const September

	 type ParseError (struct)
		ParseError describes a problem parsing a time string.

		Fields (total 5)
			Layout string
			LayoutElem string
			Message string
			Value string
			ValueElem string
		Methods (only one)
			(*ParseError) Error() string
				Error returns the string representation of a ParseError.

		Implements (at least one exported)
			*ParseError : error

	 type Ticker (struct)
		A Ticker holds a channel that delivers “ticks” of a clock
		at intervals.

		Fields (only one)
			C <-chan Time
				// The channel on which the ticks are delivered.

		Methods (total 2)
			(*Ticker) Reset(d Duration)
				Reset stops a ticker and resets its period to the specified duration.
				The next tick will arrive after the new period elapses. The duration d
				must be greater than zero; if not, Reset will panic.

			(*Ticker) Stop()
				Stop turns off a ticker. After Stop, no more ticks will be sent.
				Stop does not close the channel, to prevent a concurrent goroutine
				reading from the channel from seeing an erroneous "tick".

		As Outputs Of (at least one exported)
			func NewTicker(d Duration) *Ticker

	 type Time (struct)
		A Time represents an instant in time with nanosecond precision.
		
		Programs using times should typically store and pass them as values,
		not pointers. That is, time variables and struct fields should be of
		type [time.Time], not *time.Time.
		
		A Time value can be used by multiple goroutines simultaneously except
		that the methods [Time.GobDecode], [Time.UnmarshalBinary], [Time.UnmarshalJSON] and
		[Time.UnmarshalText] are not concurrency-safe.
		
		Time instants can be compared using the [Time.Before], [Time.After], and [Time.Equal] methods.
		The [Time.Sub] method subtracts two instants, producing a [Duration].
		The [Time.Add] method adds a Time and a Duration, producing a Time.
		
		The zero value of type Time is January 1, year 1, 00:00:00.000000000 UTC.
		As this time is unlikely to come up in practice, the [Time.IsZero] method gives
		a simple way of detecting a time that has not been initialized explicitly.
		
		Each time has an associated [Location]. The methods [Time.Local], [Time.UTC], and Time.In return a
		Time with a specific Location. Changing the Location of a Time value with
		these methods does not change the actual instant it represents, only the time
		zone in which to interpret it.
		
		Representations of a Time value saved by the [Time.GobEncode], [Time.MarshalBinary],
		[Time.MarshalJSON], and [Time.MarshalText] methods store the [Time.Location]'s offset, but not
		the location name. They therefore lose information about Daylight Saving Time.
		
		In addition to the required “wall clock” reading, a Time may contain an optional
		reading of the current process's monotonic clock, to provide additional precision
		for comparison or subtraction.
		See the “Monotonic Clocks” section in the package documentation for details.
		
		Note that the Go == operator compares not just the time instant but also the
		Location and the monotonic clock reading. Therefore, Time values should not
		be used as map or database keys without first guaranteeing that the
		identical Location has been set for all values, which can be achieved
		through use of the UTC or Local method, and that the monotonic clock reading
		has been stripped by setting t = t.Round(0). In general, prefer t.Equal(u)
		to t == u, since t.Equal uses the most accurate comparison available and
		correctly handles the case when only one of its arguments has a monotonic
		clock reading.

		Methods (total 45)
			( Time) Add(d Duration) Time
				Add returns the time t+d.

			( Time) AddDate(years int, months int, days int) Time
				AddDate returns the time corresponding to adding the
				given number of years, months, and days to t.
				For example, AddDate(-1, 2, 3) applied to January 1, 2011
				returns March 4, 2010.
				
				Note that dates are fundamentally coupled to timezones, and calendrical
				periods like days don't have fixed durations. AddDate uses the Location of
				the Time value to determine these durations. That means that the same
				AddDate arguments can produce a different shift in absolute time depending on
				the base Time value and its Location. For example, AddDate(0, 0, 1) applied
				to 12:00 on March 27 always returns 12:00 on March 28. At some locations and
				in some years this is a 24 hour shift. In others it's a 23 hour shift due to
				daylight savings time transitions.
				
				AddDate normalizes its result in the same way that Date does,
				so, for example, adding one month to October 31 yields
				December 1, the normalized form for November 31.

			( Time) After(u Time) bool
				After reports whether the time instant t is after u.

			( Time) AppendFormat(b []byte, layout string) []byte
				AppendFormat is like [Time.Format] but appends the textual
				representation to b and returns the extended buffer.

			( Time) Before(u Time) bool
				Before reports whether the time instant t is before u.

			( Time) Clock() (hour, min, sec int)
				Clock returns the hour, minute, and second within the day specified by t.

			( Time) Compare(u Time) int
				Compare compares the time instant t with u. If t is before u, it returns -1;
				if t is after u, it returns +1; if they're the same, it returns 0.

			( Time) Date() (year int, month Month, day int)
				Date returns the year, month, and day in which t occurs.

			( Time) Day() int
				Day returns the day of the month specified by t.

			( Time) Equal(u Time) bool
				Equal reports whether t and u represent the same time instant.
				Two times can be equal even if they are in different locations.
				For example, 6:00 +0200 and 4:00 UTC are Equal.
				See the documentation on the Time type for the pitfalls of using == with
				Time values; most code should use Equal instead.

			( Time) Format(layout string) string
				Format returns a textual representation of the time value formatted according
				to the layout defined by the argument. See the documentation for the
				constant called [Layout] to see how to represent the layout format.
				
				The executable example for [Time.Format] demonstrates the working
				of the layout string in detail and is a good reference.

			( Time) GoString() string
				GoString implements [fmt.GoStringer] and formats t to be printed in Go source
				code.

			(*Time) GobDecode(data []byte) error
				GobDecode implements the gob.GobDecoder interface.

			( Time) GobEncode() ([]byte, error)
				GobEncode implements the gob.GobEncoder interface.

			( Time) Hour() int
				Hour returns the hour within the day specified by t, in the range [0, 23].

			( Time) ISOWeek() (year, week int)
				ISOWeek returns the ISO 8601 year and week number in which t occurs.
				Week ranges from 1 to 53. Jan 01 to Jan 03 of year n might belong to
				week 52 or 53 of year n-1, and Dec 29 to Dec 31 might belong to week 1
				of year n+1.

			( Time) In(loc *Location) Time
				In returns a copy of t representing the same time instant, but
				with the copy's location information set to loc for display
				purposes.
				
				In panics if loc is nil.

			( Time) IsDST() bool
				IsDST reports whether the time in the configured location is in Daylight Savings Time.

			( Time) IsZero() bool
				IsZero reports whether t represents the zero time instant,
				January 1, year 1, 00:00:00 UTC.

			( Time) Local() Time
				Local returns t with the location set to local time.

			( Time) Location() *Location
				Location returns the time zone information associated with t.

			( Time) MarshalBinary() ([]byte, error)
				MarshalBinary implements the encoding.BinaryMarshaler interface.

			( Time) MarshalJSON() ([]byte, error)
				MarshalJSON implements the [json.Marshaler] interface.
				The time is a quoted string in the RFC 3339 format with sub-second precision.
				If the timestamp cannot be represented as valid RFC 3339
				(e.g., the year is out of range), then an error is reported.

			( Time) MarshalText() ([]byte, error)
				MarshalText implements the [encoding.TextMarshaler] interface.
				The time is formatted in RFC 3339 format with sub-second precision.
				If the timestamp cannot be represented as valid RFC 3339
				(e.g., the year is out of range), then an error is reported.

			( Time) Minute() int
				Minute returns the minute offset within the hour specified by t, in the range [0, 59].

			( Time) Month() Month
				Month returns the month of the year specified by t.

			( Time) Nanosecond() int
				Nanosecond returns the nanosecond offset within the second specified by t,
				in the range [0, 999999999].

			( Time) Round(d Duration) Time
				Round returns the result of rounding t to the nearest multiple of d (since the zero time).
				The rounding behavior for halfway values is to round up.
				If d <= 0, Round returns t stripped of any monotonic clock reading but otherwise unchanged.
				
				Round operates on the time as an absolute duration since the
				zero time; it does not operate on the presentation form of the
				time. Thus, Round(Hour) may return a time with a non-zero
				minute, depending on the time's Location.

			( Time) Second() int
				Second returns the second offset within the minute specified by t, in the range [0, 59].

			( Time) String() string
				String returns the time formatted using the format string
				
					"2006-01-02 15:04:05.999999999 -0700 MST"
				
				If the time has a monotonic clock reading, the returned string
				includes a final field "m=±<value>", where value is the monotonic
				clock reading formatted as a decimal number of seconds.
				
				The returned string is meant for debugging; for a stable serialized
				representation, use t.MarshalText, t.MarshalBinary, or t.Format
				with an explicit format string.

			( Time) Sub(u Time) Duration
				Sub returns the duration t-u. If the result exceeds the maximum (or minimum)
				value that can be stored in a [Duration], the maximum (or minimum) duration
				will be returned.
				To compute t-d for a duration d, use t.Add(-d).

			( Time) Truncate(d Duration) Time
				Truncate returns the result of rounding t down to a multiple of d (since the zero time).
				If d <= 0, Truncate returns t stripped of any monotonic clock reading but otherwise unchanged.
				
				Truncate operates on the time as an absolute duration since the
				zero time; it does not operate on the presentation form of the
				time. Thus, Truncate(Hour) may return a time with a non-zero
				minute, depending on the time's Location.

			( Time) UTC() Time
				UTC returns t with the location set to UTC.

			( Time) Unix() int64
				Unix returns t as a Unix time, the number of seconds elapsed
				since January 1, 1970 UTC. The result does not depend on the
				location associated with t.
				Unix-like operating systems often record time as a 32-bit
				count of seconds, but since the method here returns a 64-bit
				value it is valid for billions of years into the past or future.

			( Time) UnixMicro() int64
				UnixMicro returns t as a Unix time, the number of microseconds elapsed since
				January 1, 1970 UTC. The result is undefined if the Unix time in
				microseconds cannot be represented by an int64 (a date before year -290307 or
				after year 294246). The result does not depend on the location associated
				with t.

			( Time) UnixMilli() int64
				UnixMilli returns t as a Unix time, the number of milliseconds elapsed since
				January 1, 1970 UTC. The result is undefined if the Unix time in
				milliseconds cannot be represented by an int64 (a date more than 292 million
				years before or after 1970). The result does not depend on the
				location associated with t.

			( Time) UnixNano() int64
				UnixNano returns t as a Unix time, the number of nanoseconds elapsed
				since January 1, 1970 UTC. The result is undefined if the Unix time
				in nanoseconds cannot be represented by an int64 (a date before the year
				1678 or after 2262). Note that this means the result of calling UnixNano
				on the zero Time is undefined. The result does not depend on the
				location associated with t.

			(*Time) UnmarshalBinary(data []byte) error
				UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.

			(*Time) UnmarshalJSON(data []byte) error
				UnmarshalJSON implements the [json.Unmarshaler] interface.
				The time must be a quoted string in the RFC 3339 format.

			(*Time) UnmarshalText(data []byte) error
				UnmarshalText implements the [encoding.TextUnmarshaler] interface.
				The time must be in the RFC 3339 format.

			( Time) Weekday() Weekday
				Weekday returns the day of the week specified by t.

			( Time) Year() int
				Year returns the year in which t occurs.

			( Time) YearDay() int
				YearDay returns the day of the year specified by t, in the range [1,365] for non-leap years,
				and [1,366] in leap years.

			( Time) Zone() (name string, offset int)
				Zone computes the time zone in effect at time t, returning the abbreviated
				name of the zone (such as "CET") and its offset in seconds east of UTC.

			( Time) ZoneBounds() (start, end Time)
				ZoneBounds returns the bounds of the time zone in effect at time t.
				The zone begins at start and the next zone begins at end.
				If the zone begins at the beginning of time, start will be returned as a zero Time.
				If the zone goes on forever, end will be returned as a zero Time.
				The Location of the returned times will be the same as t.

		Implements (at least 11)
			 Time : encoding.BinaryMarshaler
			*Time : encoding.BinaryUnmarshaler
			 Time : encoding.TextMarshaler
			*Time : encoding.TextUnmarshaler
			*Time : encoding/gob.GobDecoder
			 Time : encoding/gob.GobEncoder
			 Time : encoding/json.Marshaler
			*Time : encoding/json.Unmarshaler
			 Time : expvar.Var
			 Time : fmt.GoStringer
			 Time : fmt.Stringer
		As Outputs Of (at least 27)
			func After(d Duration) <-chan Time
			func Date(year int, month Month, day, hour, min, sec, nsec int, loc *Location) Time
			func Now() Time
			func Parse(layout, value string) (Time, error)
			func ParseInLocation(layout, value string, loc *Location) (Time, error)
			func Tick(d Duration) <-chan Time
			func Unix(sec int64, nsec int64) Time
			func UnixMicro(usec int64) Time
			func UnixMilli(msec int64) Time
			func Time.Add(d Duration) Time
			func Time.AddDate(years int, months int, days int) Time
			func Time.In(loc *Location) Time
			func Time.Local() Time
			func Time.Round(d Duration) Time
			func Time.Truncate(d Duration) Time
			func Time.UTC() Time
			func Time.ZoneBounds() (start, end Time)
			func archive/tar.FileInfoNames.ModTime() Time
			func archive/zip.(*FileHeader).ModTime() Time
			func context.Context.Deadline() (deadline Time, ok bool)
			func io/fs.FileInfo.ModTime() Time
			func log/slog.Value.Time() Time
			func net/http.ParseTime(text string) (t Time, err error)
			func net/mail.ParseDate(date string) (Time, error)
			func net/mail.Header.Date() (Time, error)
			func os.FileInfo.ModTime() Time
			func testing.(*T).Deadline() (deadline Time, ok bool)
		As Inputs Of (at least 41)
			func Since(t Time) Duration
			func Until(t Time) Duration
			func Time.After(u Time) bool
			func Time.Before(u Time) bool
			func Time.Compare(u Time) int
			func Time.Equal(u Time) bool
			func Time.Sub(u Time) Duration
			func archive/zip.(*FileHeader).SetModTime(t Time)
			func context.WithDeadline(parent context.Context, d Time) (context.Context, context.CancelFunc)
			func context.WithDeadlineCause(parent context.Context, d Time, cause error) (context.Context, context.CancelFunc)
			func crypto/tls.(*Conn).SetDeadline(t Time) error
			func crypto/tls.(*Conn).SetReadDeadline(t Time) error
			func crypto/tls.(*Conn).SetWriteDeadline(t Time) error
			func crypto/x509.(*Certificate).CreateCRL(rand io.Reader, priv any, revokedCerts []pkix.RevokedCertificate, now, expiry Time) (crlBytes []byte, err error)
			func crypto/x509/pkix.(*CertificateList).HasExpired(now Time) bool
			func internal/poll.(*FD).SetDeadline(t Time) error
			func internal/poll.(*FD).SetReadDeadline(t Time) error
			func internal/poll.(*FD).SetWriteDeadline(t Time) error
			func log/slog.NewRecord(t Time, level slog.Level, msg string, pc uintptr) slog.Record
			func log/slog.Time(key string, v Time) slog.Attr
			func log/slog.TimeValue(v Time) slog.Value
			func net.Conn.SetDeadline(t Time) error
			func net.Conn.SetReadDeadline(t Time) error
			func net.Conn.SetWriteDeadline(t Time) error
			func net.PacketConn.SetDeadline(t Time) error
			func net.PacketConn.SetReadDeadline(t Time) error
			func net.PacketConn.SetWriteDeadline(t Time) error
			func net.(*TCPListener).SetDeadline(t Time) error
			func net.(*UnixListener).SetDeadline(t Time) error
			func net/http.ServeContent(w http.ResponseWriter, req *http.Request, name string, modtime Time, content io.ReadSeeker)
			func net/http.(*ResponseController).SetReadDeadline(deadline Time) error
			func net/http.(*ResponseController).SetWriteDeadline(deadline Time) error
			func os.Chtimes(name string, atime Time, mtime Time) error
			func os.Chtimes(name string, atime Time, mtime Time) error
			func os.(*File).SetDeadline(t Time) error
			func os.(*File).SetReadDeadline(t Time) error
			func os.(*File).SetWriteDeadline(t Time) error
			func vendor/golang.org/x/crypto/cryptobyte.(*Builder).AddASN1GeneralizedTime(t Time)
			func vendor/golang.org/x/crypto/cryptobyte.(*Builder).AddASN1UTCTime(t Time)
			func vendor/golang.org/x/crypto/cryptobyte.(*String).ReadASN1GeneralizedTime(out *Time) bool
			func vendor/golang.org/x/crypto/cryptobyte.(*String).ReadASN1UTCTime(out *Time) bool

	 type Timer (struct)
		The Timer type represents a single event.
		When the Timer expires, the current time will be sent on C,
		unless the Timer was created by [AfterFunc].
		A Timer must be created with [NewTimer] or AfterFunc.

		Fields (only one)
			C <-chan Time
		Methods (total 2)
			(*Timer) Reset(d Duration) bool
				Reset changes the timer to expire after duration d.
				It returns true if the timer had been active, false if the timer had
				expired or been stopped.
				
				For a func-based timer created with [AfterFunc](d, f), Reset either reschedules
				when f will run, in which case Reset returns true, or schedules f
				to run again, in which case it returns false.
				When Reset returns false, Reset neither waits for the prior f to
				complete before returning nor does it guarantee that the subsequent
				goroutine running f does not run concurrently with the prior
				one. If the caller needs to know whether the prior execution of
				f is completed, it must coordinate with f explicitly.
				
				For a chan-based timer created with NewTimer, as of Go 1.23,
				any receive from t.C after Reset has returned is guaranteed not
				to receive a time value corresponding to the previous timer settings;
				if the program has not received from t.C already and the timer is
				running, Reset is guaranteed to return true.
				Before Go 1.23, the only safe way to use Reset was to [Stop] and
				explicitly drain the timer first.
				See the [NewTimer] documentation for more details.

			(*Timer) Stop() bool
				Stop prevents the [Timer] from firing.
				It returns true if the call stops the timer, false if the timer has already
				expired or been stopped.
				
				For a func-based timer created with [AfterFunc](d, f),
				if t.Stop returns false, then the timer has already expired
				and the function f has been started in its own goroutine;
				Stop does not wait for f to complete before returning.
				If the caller needs to know whether f is completed,
				it must coordinate with f explicitly.
				
				For a chan-based timer created with NewTimer(d), as of Go 1.23,
				any receive from t.C after Stop has returned is guaranteed to block
				rather than receive a stale time value from before the Stop;
				if the program has not received from t.C already and the timer is
				running, Stop is guaranteed to return true.
				Before Go 1.23, the only safe way to use Stop was insert an extra
				<-t.C if Stop returned false to drain a potential stale value.
				See the [NewTimer] documentation for more details.

		As Outputs Of (at least 2)
			func AfterFunc(d Duration, f func()) *Timer
			func NewTimer(d Duration) *Timer

	 type Weekday int (basic type)
		A Weekday specifies a day of the week (Sunday = 0, ...).

		Methods (only one)
			( Weekday) String() string
				String returns the English name of the day ("Sunday", "Monday", ...).

		Implements (at least 2)
			 Weekday : expvar.Var
			 Weekday : fmt.Stringer
		As Outputs Of (at least one exported)
			func Time.Weekday() Weekday
		As Types Of (total 7)
			const Friday
			const Monday
			const Saturday
			const Sunday
			const Thursday
			const Tuesday
			const Wednesday


Package-Level Functions (total 19)

	 func After(d Duration) <-chan Time
		After waits for the duration to elapse and then sends the current time
		on the returned channel.
		It is equivalent to [NewTimer](d).C.
		
		Before Go 1.23, this documentation warned that the underlying
		[Timer] would not be recovered by the garbage collector until the
		timer fired, and that if efficiency was a concern, code should use
		NewTimer instead and call [Timer.Stop] if the timer is no longer needed.
		As of Go 1.23, the garbage collector can recover unreferenced,
		unstopped timers. There is no reason to prefer NewTimer when After will do.

	 func AfterFunc(d Duration, f func()) *Timer
		AfterFunc waits for the duration to elapse and then calls f
		in its own goroutine. It returns a [Timer] that can
		be used to cancel the call using its Stop method.
		The returned Timer's C field is not used and will be nil.

	 func Date(year int, month Month, day, hour, min, sec, nsec int, loc *Location) Time
		Date returns the Time corresponding to
		
			yyyy-mm-dd hh:mm:ss + nsec nanoseconds
		
		in the appropriate zone for that time in the given location.
		
		The month, day, hour, min, sec, and nsec values may be outside
		their usual ranges and will be normalized during the conversion.
		For example, October 32 converts to November 1.
		
		A daylight savings time transition skips or repeats times.
		For example, in the United States, March 13, 2011 2:15am never occurred,
		while November 6, 2011 1:15am occurred twice. In such cases, the
		choice of time zone, and therefore the time, is not well-defined.
		Date returns a time that is correct in one of the two zones involved
		in the transition, but it does not guarantee which.
		
		Date panics if loc is nil.

	 func FixedZone(name string, offset int) *Location
		FixedZone returns a [Location] that always uses
		the given zone name and offset (seconds east of UTC).

	 func LoadLocation(name string) (*Location, error)
		LoadLocation returns the Location with the given name.
		
		If the name is "" or "UTC", LoadLocation returns UTC.
		If the name is "Local", LoadLocation returns Local.
		
		Otherwise, the name is taken to be a location name corresponding to a file
		in the IANA Time Zone database, such as "America/New_York".
		
		LoadLocation looks for the IANA Time Zone database in the following
		locations in order:
		
		  - the directory or uncompressed zip file named by the ZONEINFO environment variable
		  - on a Unix system, the system standard installation location
		  - $GOROOT/lib/time/zoneinfo.zip
		  - the time/tzdata package, if it was imported

	 func LoadLocationFromTZData(name string, data []byte) (*Location, error)
		LoadLocationFromTZData returns a Location with the given name
		initialized from the IANA Time Zone database-formatted data.
		The data should be in the format of a standard IANA time zone file
		(for example, the content of /etc/localtime on Unix systems).

	 func NewTicker(d Duration) *Ticker
		NewTicker returns a new [Ticker] containing a channel that will send
		the current time on the channel after each tick. The period of the
		ticks is specified by the duration argument. The ticker will adjust
		the time interval or drop ticks to make up for slow receivers.
		The duration d must be greater than zero; if not, NewTicker will
		panic.
		
		Before Go 1.23, the garbage collector did not recover
		tickers that had not yet expired or been stopped, so code often
		immediately deferred t.Stop after calling NewTicker, to make
		the ticker recoverable when it was no longer needed.
		As of Go 1.23, the garbage collector can recover unreferenced
		tickers, even if they haven't been stopped.
		The Stop method is no longer necessary to help the garbage collector.
		(Code may of course still want to call Stop to stop the ticker for other reasons.)

	 func NewTimer(d Duration) *Timer
		NewTimer creates a new Timer that will send
		the current time on its channel after at least duration d.
		
		Before Go 1.23, the garbage collector did not recover
		timers that had not yet expired or been stopped, so code often
		immediately deferred t.Stop after calling NewTimer, to make
		the timer recoverable when it was no longer needed.
		As of Go 1.23, the garbage collector can recover unreferenced
		timers, even if they haven't expired or been stopped.
		The Stop method is no longer necessary to help the garbage collector.
		(Code may of course still want to call Stop to stop the timer for other reasons.)
		
		Before Go 1.23, the channel associated with a Timer was
		asynchronous (buffered, capacity 1), which meant that
		stale time values could be received even after [Timer.Stop]
		or [Timer.Reset] returned.
		As of Go 1.23, the channel is synchronous (unbuffered, capacity 0),
		eliminating the possibility of those stale values.
		
		The GODEBUG setting asynctimerchan=1 restores both pre-Go 1.23
		behaviors: when set, unexpired timers won't be garbage collected, and
		channels will have buffered capacity. This setting may be removed
		in Go 1.27 or later.

	 func Now() Time
		Now returns the current local time.

	 func Parse(layout, value string) (Time, error)
		Parse parses a formatted string and returns the time value it represents.
		See the documentation for the constant called [Layout] to see how to
		represent the format. The second argument must be parseable using
		the format string (layout) provided as the first argument.
		
		The example for [Time.Format] demonstrates the working of the layout string
		in detail and is a good reference.
		
		When parsing (only), the input may contain a fractional second
		field immediately after the seconds field, even if the layout does not
		signify its presence. In that case either a comma or a decimal point
		followed by a maximal series of digits is parsed as a fractional second.
		Fractional seconds are truncated to nanosecond precision.
		
		Elements omitted from the layout are assumed to be zero or, when
		zero is impossible, one, so parsing "3:04pm" returns the time
		corresponding to Jan 1, year 0, 15:04:00 UTC (note that because the year is
		0, this time is before the zero Time).
		Years must be in the range 0000..9999. The day of the week is checked
		for syntax but it is otherwise ignored.
		
		For layouts specifying the two-digit year 06, a value NN >= 69 will be treated
		as 19NN and a value NN < 69 will be treated as 20NN.
		
		The remainder of this comment describes the handling of time zones.
		
		In the absence of a time zone indicator, Parse returns a time in UTC.
		
		When parsing a time with a zone offset like -0700, if the offset corresponds
		to a time zone used by the current location ([Local]), then Parse uses that
		location and zone in the returned time. Otherwise it records the time as
		being in a fabricated location with time fixed at the given zone offset.
		
		When parsing a time with a zone abbreviation like MST, if the zone abbreviation
		has a defined offset in the current location, then that offset is used.
		The zone abbreviation "UTC" is recognized as UTC regardless of location.
		If the zone abbreviation is unknown, Parse records the time as being
		in a fabricated location with the given zone abbreviation and a zero offset.
		This choice means that such a time can be parsed and reformatted with the
		same layout losslessly, but the exact instant used in the representation will
		differ by the actual zone offset. To avoid such problems, prefer time layouts
		that use a numeric zone offset, or use [ParseInLocation].

	 func ParseDuration(s string) (Duration, error)
		ParseDuration parses a duration string.
		A duration string is a possibly signed sequence of
		decimal numbers, each with optional fraction and a unit suffix,
		such as "300ms", "-1.5h" or "2h45m".
		Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".

	 func ParseInLocation(layout, value string, loc *Location) (Time, error)
		ParseInLocation is like Parse but differs in two important ways.
		First, in the absence of time zone information, Parse interprets a time as UTC;
		ParseInLocation interprets the time as in the given location.
		Second, when given a zone offset or abbreviation, Parse tries to match it
		against the Local location; ParseInLocation uses the given location.

	 func Since(t Time) Duration
		Since returns the time elapsed since t.
		It is shorthand for time.Now().Sub(t).

	 func Sleep(d Duration)
		Sleep pauses the current goroutine for at least the duration d.
		A negative or zero duration causes Sleep to return immediately.

	 func Tick(d Duration) <-chan Time
		Tick is a convenience wrapper for [NewTicker] providing access to the ticking
		channel only. Unlike NewTicker, Tick will return nil if d <= 0.
		
		Before Go 1.23, this documentation warned that the underlying
		[Ticker] would never be recovered by the garbage collector, and that
		if efficiency was a concern, code should use NewTicker instead and
		call [Ticker.Stop] when the ticker is no longer needed.
		As of Go 1.23, the garbage collector can recover unreferenced
		tickers, even if they haven't been stopped.
		The Stop method is no longer necessary to help the garbage collector.
		There is no longer any reason to prefer NewTicker when Tick will do.

	 func Unix(sec int64, nsec int64) Time
		Unix returns the local Time corresponding to the given Unix time,
		sec seconds and nsec nanoseconds since January 1, 1970 UTC.
		It is valid to pass nsec outside the range [0, 999999999].
		Not all sec values have a corresponding time value. One such
		value is 1<<63-1 (the largest int64 value).

	 func UnixMicro(usec int64) Time
		UnixMicro returns the local Time corresponding to the given Unix time,
		usec microseconds since January 1, 1970 UTC.

	 func UnixMilli(msec int64) Time
		UnixMilli returns the local Time corresponding to the given Unix time,
		msec milliseconds since January 1, 1970 UTC.

	 func Until(t Time) Duration
		Until returns the duration until t.
		It is shorthand for t.Sub(time.Now()).


Package-Level Variables (total 2)

	  var Local *Location
		Local represents the system's local time zone.
		On Unix systems, Local consults the TZ environment
		variable to find the time zone to use. No TZ means
		use the system default /etc/localtime.
		TZ="" means use UTC.
		TZ="foo" means use file foo in the system timezone directory.

	  var UTC *Location
		UTC represents Universal Coordinated Time (UTC).


Package-Level Constants (total 44)

	const ANSIC = "Mon Jan _2 15:04:05 2006"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const April Month = 4
	const August Month = 8
	const DateOnly = "2006-01-02"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const DateTime = "2006-01-02 15:04:05"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const December Month = 12
	const February Month = 2
	const Friday Weekday = 5
	const Hour Duration = 3600000000000
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const January Month = 1
	const July Month = 7
	const June Month = 6
	const Kitchen = "3:04PM"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const Layout = "01/02 03:04:05PM '06 -0700" // The reference time, in numerical order.
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const March Month = 3
	const May Month = 5
	const Microsecond Duration = 1000
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const Millisecond Duration = 1000000
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const Minute Duration = 60000000000
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const Monday Weekday = 1
	const Nanosecond Duration = 1
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const November Month = 11
	const October Month = 10
	const RFC1123 = "Mon, 02 Jan 2006 15:04:05 MST"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC1123Z = "Mon, 02 Jan 2006 15:04:05 -0700" // RFC1123 with numeric zone
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC3339 = "2006-01-02T15:04:05Z07:00"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC822 = "02 Jan 06 15:04 MST"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC822Z = "02 Jan 06 15:04 -0700" // RFC822 with numeric zone
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RFC850 = "Monday, 02-Jan-06 15:04:05 MST"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const RubyDate = "Mon Jan 02 15:04:05 -0700 2006"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const Saturday Weekday = 6
	const Second Duration = 1000000000
		Common durations. There is no definition for units of Day or larger
		to avoid confusion across daylight savings time zone transitions.
		
		To count the number of units in a [Duration], divide:
		
			second := time.Second
			fmt.Print(int64(second/time.Millisecond)) // prints 1000
		
		To convert an integer number of units to a Duration, multiply:
		
			seconds := 10
			fmt.Print(time.Duration(seconds)*time.Second) // prints 10s

	const September Month = 9
	const Stamp = "Jan _2 15:04:05"
		Handy time stamps.

	const StampMicro = "Jan _2 15:04:05.000000"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const StampMilli = "Jan _2 15:04:05.000"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const StampNano = "Jan _2 15:04:05.000000000"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const Sunday Weekday = 0
	const Thursday Weekday = 4
	const TimeOnly = "15:04:05"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const Tuesday Weekday = 2
	const UnixDate = "Mon Jan _2 15:04:05 MST 2006"
		These are predefined layouts for use in [Time.Format] and [time.Parse].
		The reference time used in these layouts is the specific time stamp:
		
			01/02 03:04:05PM '06 -0700
		
		(January 2, 15:04:05, 2006, in time zone seven hours west of GMT).
		That value is recorded as the constant named [Layout], listed below. As a Unix
		time, this is 1136239445. Since MST is GMT-0700, the reference would be
		printed by the Unix date command as:
		
			Mon Jan 2 15:04:05 MST 2006
		
		It is a regrettable historic error that the date uses the American convention
		of putting the numerical month before the day.
		
		The example for Time.Format demonstrates the working of the layout string
		in detail and is a good reference.
		
		Note that the [RFC822], [RFC850], and [RFC1123] formats should be applied
		only to local times. Applying them to UTC times will use "UTC" as the
		time zone abbreviation, while strictly speaking those RFCs require the
		use of "GMT" in that case.
		When using the [RFC1123] or [RFC1123Z] formats for parsing, note that these
		formats define a leading zero for the day-in-month portion, which is not
		strictly allowed by RFC 1123. This will result in an error when parsing
		date strings that occur in the first 9 days of a given month.
		In general [RFC1123Z] should be used instead of [RFC1123] for servers
		that insist on that format, and [RFC3339] should be preferred for new protocols.
		[RFC3339], [RFC822], [RFC822Z], [RFC1123], and [RFC1123Z] are useful for formatting;
		when used with time.Parse they do not accept all the time formats
		permitted by the RFCs and they do accept time formats not formally defined.
		The [RFC3339Nano] format removes trailing zeros from the seconds field
		and thus may not sort correctly once formatted.
		
		Most programs can use one of the defined constants as the layout passed to
		Format or Parse. The rest of this comment can be ignored unless you are
		creating a custom layout string.
		
		To define your own format, write down what the reference time would look like
		formatted your way; see the values of constants like [ANSIC], [StampMicro] or
		[Kitchen] for examples. The model is to demonstrate what the reference time
		looks like so that the Format and Parse methods can apply the same
		transformation to a general time value.
		
		Here is a summary of the components of a layout string. Each element shows by
		example the formatting of an element of the reference time. Only these values
		are recognized. Text in the layout string that is not recognized as part of
		the reference time is echoed verbatim during Format and expected to appear
		verbatim in the input to Parse.
		
			Year: "2006" "06"
			Month: "Jan" "January" "01" "1"
			Day of the week: "Mon" "Monday"
			Day of the month: "2" "_2" "02"
			Day of the year: "__2" "002"
			Hour: "15" "3" "03" (PM or AM)
			Minute: "4" "04"
			Second: "5" "05"
			AM/PM mark: "PM"
		
		Numeric time zone offsets format as follows:
		
			"-0700"     ±hhmm
			"-07:00"    ±hh:mm
			"-07"       ±hh
			"-070000"   ±hhmmss
			"-07:00:00" ±hh:mm:ss
		
		Replacing the sign in the format with a Z triggers
		the ISO 8601 behavior of printing Z instead of an
		offset for the UTC zone. Thus:
		
			"Z0700"      Z or ±hhmm
			"Z07:00"     Z or ±hh:mm
			"Z07"        Z or ±hh
			"Z070000"    Z or ±hhmmss
			"Z07:00:00"  Z or ±hh:mm:ss
		
		Within the format string, the underscores in "_2" and "__2" represent spaces
		that may be replaced by digits if the following number has multiple digits,
		for compatibility with fixed-width Unix time formats. A leading zero represents
		a zero-padded value.
		
		The formats __2 and 002 are space-padded and zero-padded
		three-character day of year; there is no unpadded day of year format.
		
		A comma or decimal point followed by one or more zeros represents
		a fractional second, printed to the given number of decimal places.
		A comma or decimal point followed by one or more nines represents
		a fractional second, printed to the given number of decimal places, with
		trailing zeros removed.
		For example "15:04:05,000" or "15:04:05.000" formats or parses with
		millisecond precision.
		
		Some valid layouts are invalid time values for time.Parse, due to formats
		such as _ for space padding and Z for zone information.

	const Wednesday Weekday = 3

The pages are generated with Golds v0.7.0-preview. (GOOS=linux GOARCH=amd64)
Golds is a Go 101 project developed by Tapir Liu.
PR and bug reports are welcome and can be submitted to the issue list.
Please follow @zigo_101 (reachable from the left QR code) to get the latest news of Golds.