Golang : Convert date format and separator yyyy-mm-dd to dd-mm-yyyy



Tags : golang date-format yyyy-mm-dd dd-mm-yyyy british-date-format

Feeling bored today and just want to play around with date formats. It seems that Golang's time package does not have the formats for dd-mm-yyyy.

Below is an example code on how to change the American style date format to British/Commonwealth/European/yyyy-mm-dd style date formats. It also shows you how to change the day month year separator as well.

Here you go!

 package main

 import (
 "fmt"
 "time"
 )

 func main() {

 now := time.Now()

 fmt.Println("Before : ", now)

 // reduce the date format
 // remember NOT to use 2006-01-01 or 02-02 or same digit
 // for month and date. Will cause weird date result
 //fmt.Println(now.Format("2006-01-01")) <--- WRONG

 // mm-dd-yyyy for USA/American
 fmt.Println("mm-dd-yyyy date format : ", now.Format("01-02-2006")) // <-- CORRECT

 // change to British/Commonwealth/European countries date format
 // from mm-dd-yyyy to dd-mm-yyyy

 fmt.Println("dd-mm-yyyy date format : ", now.Format("02-01-2006"))

 // play around with 01 and 02 and see how it goes...

 fmt.Println("yyyy-mm-dd date format : ", now.Format("2006-01-02"))

 fmt.Println("yyyy-dd-mm date format : ", now.Format("2006-02-01"))

 // you can change the separator too!
 fmt.Println("dd.mm.yyyy date format : ", now.Format("02.01.2006"))

 fmt.Println("dd/mm/yyyy date format : ", now.Format("02/01/2006"))
 }

Happy coding!

Sample output :

Before : 2015-08-28 13:59:53.975870721 +0800 SGT

mm-dd-yyyy date format : 08-28-2015

dd-mm-yyyy date format : 28-08-2015

yyyy-mm-dd date format : 2015-08-28

yyyy-dd-mm date format : 2015-28-08

dd.mm.yyyy date format : 28.08.2015

dd/mm/yyyy date format : 28/08/2015

Reference :

http://golang.org/pkg/time/#pkg-constants

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  See also : Golang : Change date format to yyyy-mm-dd



Tags : golang date-format yyyy-mm-dd dd-mm-yyyy british-date-format

By Adam Ng

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