Golang : Parse date string and convert to dd-mm-yyyy format
A reader enquired on how to use Golang to convert date string such as "28th nov 2016" or "nov 28 2016" to 28-11-2016
To accomplish this, we use the time.Parse
function with a given layout that matches the input date string into Golang's time.Time
type
The only thing that we need to watch out for is to sanitize the input date string from th
, nd
,st
and rd
Here you go!
package main
import (
"fmt"
"strings"
"time"
)
func main() {
// test 1
inputDate := "28 nov 2016"
layOut := "2 Jan 2006"
timeStamp, err := time.Parse(layOut, inputDate)
fmt.Println("Test 1 date : ", inputDate)
if err != nil {
fmt.Println(err)
} else {
year, month, day := timeStamp.Date()
fmt.Printf("Date : [%d]year : [%d]month : [%d]day \n", year, month, day)
// mm-dd-yyyy
fmt.Println("mm-dd-yyyy date format : ", timeStamp.Format("01-02-2006"))
}
// test 2
inputDate = "November 28th 2016"
fmt.Println("\n\nTest 2 date : ", inputDate)
// need to remove th, nd, st and rd from inputDate string
inputDate = strings.ToLower(inputDate)
inputDate = strings.Replace(inputDate, "th", "", -1)
inputDate = strings.Replace(inputDate, "nd", "", -1)
inputDate = strings.Replace(inputDate, "st", "", -1)
inputDate = strings.Replace(inputDate, "rd", "", -1)
layOut = "January 2 2006"
timeStamp, err = time.Parse(layOut, inputDate)
if err != nil {
fmt.Println(err)
} else {
year, month, day := timeStamp.Date()
fmt.Printf("Date : [%d]year : [%d]month : [%d]day \n", year, month, day)
// dd-mm-yyyy
fmt.Println("dd-mm-yyyy date format : ", timeStamp.Format("02-01-2006"))
}
}
Output:
Test 1 date : 28 nov 2016
Date : [2016]year : [11]month : [28]day
mm-dd-yyyy date format : 11-28-2016
Test 2 date : November 28th 2016
Date : [2016]year : [11]month : [28]day
dd-mm-yyyy date format : 28-11-2016
References:
See also : Golang : Convert date or time stamp from string to time.Time type
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+12.1k Golang : Read from buffered reader until specific number of bytes
+17.9k Golang : Clearing slice
+8.1k Golang : Play .WAV file from command line
+7.3k Golang: Prevent over writing file with md5 hash
+7.7k Golang : Accept any number of function arguments with three dots(...)
+17.9k Golang : Check if directory exist and create if does not exist
+5.1k Golang : Convert Chinese UTF8 characters to Pin Yin
+4.4k Unix/Linux/MacOSx : How to remove an environment variable ?
+12.5k Golang : Human readable time elapsed format such as 5 days ago
+10.4k Golang : flag provided but not defined error
+13.1k Golang : Recombine chunked files example
+23.9k Golang : Convert IP address string to long ( unsigned 32-bit integer )