golang时间字符串和时间戳转换的案例

作者: u234293239
来源: 51数据库
2021-09-04

1. 获取当前时间字符串和时间戳

package main
import (
  "fmt"
  "time"
)
func main() {
  now := time.now().utc()
  // 显示时间格式： unixdate = "mon jan _2 15:04:05 mst 2006"
  fmt.printf("%s\n", now.format(time.unixdate))
  // 显示时间戳
  fmt.printf("%ld\n", now.unix())
  // 显示时分:kitchen = "3:04pm"
  fmt.printf("%s\n", now.format("3:04pm"))
}

更多时间格式

const (
    ansic    = "mon jan _2 15:04:05 2006"
    unixdate  = "mon jan _2 15:04:05 mst 2006"
    rubydate  = "mon jan 02 15:04:05 -0700 2006"
    rfc822   = "02 jan 06 15:04 mst"
    rfc822z   = "02 jan 06 15:04 -0700" // rfc822 with numeric zone
    rfc850   = "monday, 02-jan-06 15:04:05 mst"
    rfc1123   = "mon, 02 jan 2006 15:04:05 mst"
    rfc1123z  = "mon, 02 jan 2006 15:04:05 -0700" // rfc1123 with numeric zone
    rfc3339   = "2006-01-02t15:04:05z07:00"
    rfc3339nano = "2006-01-02t15:04:05.999999999z07:00"
    kitchen   = "3:04pm"
    // handy time stamps.
    stamp   = "jan _2 15:04:05"
    stampmilli = "jan _2 15:04:05.000"
    stampmicro = "jan _2 15:04:05.000000"
    stampnano = "jan _2 15:04:05.000000000"
)

2. 时间字符串解析成时间格式

package main
import (
  "fmt"
  "time"
)
func main() {
  timestr := "2018-01-01"
  fmt.println("timestr:", timestr)
  t, _ := time.parse("2006-01-02", timestr)
  fmt.println(t.format(time.unixdate))
}

3. 获取当天零点时间戳

方法1

package main
import (
  "fmt"
  "time"
)
func main() {
  timestr := time.now().format("2006-01-02")
  t, _ := time.parse("2006-01-02", timestr)
  fmt.println(t.format(time.unixdate))
  //unix返回早八点的时间戳，减去8个小时
  timestamp := t.utc().unix() - 8*3600
  fmt.println("timestamp:", timestamp)
}

方法2

package main
import (
  "fmt"
  "time"
)
func main() {
  now := time.now()
  t, _ := time.parseinlocation("2006-01-02", now.format("2006-01-02"), time.local)
  timestamp := t.unix()
  fmt.println(timestamp)
}
/*
time.local本地时区
  var local *location = &localloc
以及utc时区
  var utc *location = &utcloc
还可以替换成指定时区
  //func loadlocation(name string) (*location, error)
  loc, _ := time.loadlocation("europe/berlin")
if the name is "" or "utc", loadlocation returns utc. if the name is "local", loadlocation returns local.
*/

补充：golang中获取当天0点的格式化时间

如下所示：

enddatelimit := time.now().format("2006-01-02 00:00:00")

取当天某个整点的时间戳

now := time.now().unix()
muteendtime := time.date(time.now().year(), time.now().month(), time.now().day(), 8, 0, 0, 0, time.local).unix()
mutestarttime := time.date(time.now().year(), time.now().month(), time.now().day(), 22, 0, 0, 0, time.local).unix()

本地当前时间戳(10位)

fmt.println(time.now().unix()) //1468479251

本地当前时间戳(19位)

fmt.println(time.now().unixnano()) //1468480006774460462

时间戳转时间

fmt.println(time.unix(1389058332, 0).format("2006-01-02 15:04:05")) //2014-01-07 09:32:12

时间转时间戳

fmt.println(time.date(2014, 1, 7, 5, 50, 4, 0, time.local).unix())

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。