Golang : Change date format to yyyy-mm-dd

Problem :

Your Golang program is producing date in long form that look like this :

2015-08-11 17:21:52.776537624 +0800 MYT

and you want to change the format to short form - yyyy-mm-dd. How to do that?

Solution :

Use the time.Time.Format() function. For example :

 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

 fmt.Println("After : ", now.Format("2006-01-02")) // <-- CORRECT
 }

Sample output :

Before : 2015-08-11 17:29:07.626918059 +0800 MYT

After : 2015-08-11