Go对时间操作有很好的支持。Unix纪元时间用作时间操作的参考。
我们可以使用time包中提供的Date方法来构建时间对象。该包包含诸如year()，month()，day()，location()等方法。
我们通过使用时间对象来调用这些方法。
Go 时间示例
package main
import "fmt"
import "time"
func main() {
p := fmt.Println
present := time.Now()//当前时间
p(present)
DOB := time.Date(1993, 02, 28, 9,04,39,213 ,time.Local)
fmt.Println(DOB)
fmt.Println(DOB.Year())
fmt.Println(DOB.Month())
fmt.Println(DOB.Day())
fmt.Println(DOB.Hour())
fmt.Println(DOB.Minute())
fmt.Println(DOB.Second())
fmt.Println(DOB.Nanosecond())
fmt.Println(DOB.Location())
fmt.Println(DOB.Weekday())
fmt.Println(DOB.Before(present))
fmt.Println(DOB.After(present))
fmt.Println(DOB.Equal(present))
diff := present.Sub(DOB)
fmt.Println(diff)
fmt.Println(diff.Hours())
fmt.Println(diff.Minutes())
fmt.Println(diff.Seconds())
fmt.Println(diff.Nanoseconds())
fmt.Println(DOB.Add(diff))
fmt.Println(DOB.Add(-diff))
}输出：
2017-10-04 17:10:13.474931994 +0530 IST m=+0.000334969 1993-02-28 09:04:39.000000213 +0530 IST 1993 February 28 9 4 39 213 Local Sunday true false false 215624h5m34.474931781s 215624.09290970326 1.2937445574582197e+07 7.762467344749318e+08 776246734474931781 2017-10-04 17:10:13.474931994 +0530 IST 1968-07-25 00:59:04.525068432 +0530 IST Process finished with exit code 0
Go 时间示例2
package main
import (
"fmt"
"time"
)
func main() {
present := time.Now()
fmt.Println("Today : ", present.Format("Mon, Jan 2, 2006 at 3:04pm"))
someTime := time.Date(2017, time.March, 30, 11, 30, 55, 123456, time.Local)
// 使用 time.Equal()比较时间
sameTime := someTime.Equal(present)
fmt.Println("someTime equals to now ? : ", sameTime)
//计算今天和以前之间的时差
diff := present.Sub(someTime)
//将差异转换为天数
days := int(diff.Hours() / 24)
fmt.Printf("30th March 2017 was %d days ago \n", days)
}输出：
Today : Wed, Oct 4, 2017 at 5:15pm someTime equals to now ? : false 30th March 2017 was 188 days ago