How to parse unix timestamp in golang

问题:

I'm trying to parse an Unix timestamp but I get out of range error. That doesn't really makes sense to me because the layout is correct (as in the golang docs):

package main  import "fmt" import "time"  func main() {     tm, err := time.Parse("1136239445", "1405544146")     if err !=nil{         panic(err)     }      fmt.Println(tm) } 

play

回答1:

The time.Parse function does not do Unix timestamps. Instead you can use strconv.ParseInt to parse the string to int64 and create the timestamp with time.Unix:

package main  import (     "fmt"     "time"     "strconv" )  func main() {     i, err := strconv.ParseInt("1405544146", 10, 64)     if err != nil {         panic(err)     }     tm := time.Unix(i, 0)     fmt.Println(tm) } 

Output:

2014-07-16 20:55:46 +0000 UTC 

Playground: http://play.golang.org/p/v_j6UIro7a

Edit:

Changed from strconv.Atoi to strconv.ParseInt to avoid int overflows on 32 bit systems.

回答2:

you can directly use time.Unix function of time which converts the unix time stamp to UTC

package main  import (   "fmt"   "time" )   func main() {  unixTimeUTC:=time.Unix(1405544146, 0) //gives unix time stamp in utc   unitTimeInRFC3339 :=unixTimeUTC.Format(time.RFC3339) // converts utc time to RFC3339 format  fmt.Println("unix time stamp in UTC :--->",unixTimeUTC) fmt.Println("unix time stamp in unitTimeInRFC3339 format :->",unitTimeInRFC3339) 

}

Output

unix time stamp in UTC :---> 2014-07-16 20:55:46 +0000 UTC unix time stamp in unitTimeInRFC3339 format :----> 2014-07-16T20:55:46Z 

check in Go Playground : https://play.golang.org/p/5FtRdnkxAd

回答3:

Sharing a few functions which I created for dates:

Please note that I wanted to get time for a particular location (not just UTC time). If you want UTC time, just remove loc variable and .In(loc) function call.

func GetTimeStamp() string {      loc, _ := time.LoadLocation("America/Los_Angeles")      t := time.Now().In(loc)      return t.Format("20060102150405") } func GetTodaysDate() string {     loc, _ := time.LoadLocation("America/Los_Angeles")     current_time := time.Now().In(loc)     return current_time.Format("2006-01-02") }  func GetTodaysDateTime() string {     loc, _ := time.LoadLocation("America/Los_Angeles")     current_time := time.Now().In(loc)     return current_time.Format("2006-01-02 15:04:05") }  func GetTodaysDateTimeFormatted() string {     loc, _ := time.LoadLocation("America/Los_Angeles")     current_time := time.Now().In(loc)     return current_time.Format("Jan 2, 2006 at 3:04 PM") }  func GetTimeStampFromDate(dtformat string) string {     form := "Jan 2, 2006 at 3:04 PM"     t2, _ := time.Parse(form, dtformat)     return t2.Format("20060102150405") } 

回答4:

Just use time.Parse

example:

package main  import (     "fmt"     "time" )  func main() {     fromString := "Wed, 6 Sep 2017 10:43:01 +0300"     t, e := time.Parse("Mon, _2 Jan 2006 15:04:05 -0700", fromString)     if e != nil {         fmt.Printf("err: %s\n", e)     }     fmt.Printf("UTC time: %v\n", t.UTC()) } 

Working example on play.golang.org.

文章来源: How to parse unix timestamp in golang