gobyexample/time/time.go

71 lines
1.5 KiB
Go
Raw Normal View History

2024-05-02 07:56:46 +00:00
package time
import (
"fmt"
"time"
)
var f = fmt.Println
func epoch() {
now := time.Now().UTC()
f("Epoch seconds:", now.Unix())
f("Epoch milli:", now.UnixMilli())
f("Epoch nano:", now.UnixNano())
f("Custom time from epoch:", time.Unix(now.Unix(), 0))
f("Custom time from epoch:", time.Unix(0, now.UnixNano()))
}
func Time() {
now := time.Now().UTC()
f(now)
xmasTime := time.Date(2023, 12, 25, 9, 0, 0, 0, time.UTC)
f("XMAS =>", xmasTime)
f("Year:", xmasTime.Year())
f("Month:", xmasTime.Month())
f("Day:", xmasTime.Day())
f("Hour:", xmasTime.Hour())
f("Minute:", xmasTime.Minute())
f("Second:", xmasTime.Second())
f("Nanosecond:", xmasTime.Nanosecond())
f("Weekday:", xmasTime.Weekday())
f("Is Xmas before now?", xmasTime.Before(now))
f("Is Xmas after now?", xmasTime.After(now))
f("Is Xmas same as now?", xmasTime.Equal(now))
diff := now.Sub(xmasTime)
f(diff)
f(diff.Hours())
f(diff.Minutes())
f(diff.Seconds())
f(diff.Nanoseconds())
f(xmasTime.Add(diff))
f(now.Add(-diff))
epoch()
2024-05-02 08:36:18 +00:00
timeFormatting()
}
func timeFormatting() {
now := time.Now()
t1, _ := time.Parse(
time.RFC3339,
"2023-12-25T10:00:00+05:30",
)
f(t1)
// Example string should match the datetime: Monday January 02 2006 15:04:05
// (this resembles month:1 day:2 hour:3 minute:4 seconds:5 year:6)
f("Custom format:", now.Format("2006/1/2"))
f("Custom format:", now.Format("Monday, 02 Jan"))
f("Custom format:", t1.Format("Monday, _2 Jan"))
f("Custom format:", t1.Format("Monday, 2/01/2006"))
2024-05-02 07:56:46 +00:00
}