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。
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
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