golang时间字符串和时间戳转换的案例

时间：2021-03-28 09:16:47|栏目：Golang|点击：次

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)