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64 lines
1.3 KiB
Go
64 lines
1.3 KiB
Go
// Go offers extensive support for times and durations;
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// here are some examples.
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package main
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import (
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"fmt"
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"time"
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)
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func main() {
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p := fmt.Println
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// We'll start by getting the current time.
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now := time.Now()
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p(now)
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// You can build a `time` struct by providing the
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// year, month, day, etc. Times are always associated
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// with a `Location`, i.e. time zone.
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then := time.Date(
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2009, 11, 17, 20, 34, 58, 651387237, time.UTC)
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p(then)
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// You can extract the various components of the time
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// value as expected.
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p(then.Year())
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p(then.Month())
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p(then.Day())
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p(then.Hour())
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p(then.Minute())
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p(then.Second())
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p(then.Nanosecond())
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p(then.Location())
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// The Monday-Sunday `Weekday` is also available.
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p(then.Weekday())
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// These methods compare two times, testing if the
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// first occurs before, after, or at the same time
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// as the second, respectively.
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p(then.Before(now))
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p(then.After(now))
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p(then.Equal(now))
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// The `Sub` methods returns a `Duration` representing
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// the interval between two times.
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diff := now.Sub(then)
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p(diff)
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// We can compute the length of the duration in
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// various units.
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p(diff.Hours())
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p(diff.Minutes())
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p(diff.Seconds())
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p(diff.Nanoseconds())
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// You can use `Add` to advance a time by a given
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// duration, or with a `-` to move backwards by a
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// duration.
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p(then.Add(diff))
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p(then.Add(-diff))
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}
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