Location in Go
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, such as CEST and CET for central Europe.
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)
}