Change GMT time format to 24 hours javascript

Question

I have a GMT time format and I changed it to my local browser time by using:

var newDate = new Date(GMTFromat);
mytime= newDate.toLocaleString();

The output is:

3/12/2010 1:02:00 PM

Now I want to change 12 hours to 24 hours format in javascript.
Example:

3/12/2010 13:02:00

Any suggestion?

Thanks

Try this http://stackoverflow.com/questions/10556879/changing-the-1-24-hour-to-1-12-hour-for-the-gethours-method — Aamir Afridi, Mar 12 '14 at 12:13

score 0 · Accepted Answer · edited May 23 '17 at 12:05

0

enter code hereIts a copy of SO link

Code from the above link:

function to24Hour(str) {

  var tokens = /([10]?\d):([0-5]\d):([0-5]\d) ([ap]m)/i.exec(str);

  if (tokens == null) { return null; }
    if (tokens[4].toLowerCase() === 'pm' && tokens[1] !== '12') {
      tokens[1] = '' + (12 + (+tokens[1]));
    } else if (tokens[4].toLowerCase() === 'am' && tokens[1] === '12') {
      tokens[1] = '00';
    }
  return tokens[1] + ':' + tokens[2] + ":" + tokens[3]; 
}

Edit:

var date = "3/12/2010 8:45:59 AM";
var dateTime = date.split(" ");
var datePart = dateTime[0];
var timePart = dateTime[1] + " " + dateTime[2];
timePart = to24Hour(timePart);

var finalDate = datePart + timePart;

edited May 23 '17 at 12:05

Community

1
1

answered Mar 12 '14 at 12:20

Arjit

3,290
1
17
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thanks man! and if I want to keep the date too, what should I do? because it just returns the time. but I need both date and time together – user3409650 Mar 12 '14 at 12:34
you can separate the date part & time part from your input, then can pass the time part to this method , then append the result of this method with your date part – Arjit Mar 12 '14 at 12:39

score 0 · Answer 2 · answered Mar 12 '14 at 12:58

This can be done in any number of ways, but I wanted to do it using just the replace method. Here you go:

(new Date()).toLocaleString().replace(/(.+ )(\d+)(:.+)(\wM)/g, function replacer(match, p1, p2, p3, p4) {
    return p1 + (p4 === "PM" ? (12 + Number(p2)) : p2) + p3;
});

DEMO

score -1 · Answer 3 · answered Mar 12 '14 at 12:16

-1

$(function(){
    alert(
        moment("3/12/2010 1:02:00 PM", "M/DD/YYYY hh:mm:ss A").
            format("M/DD/YYYY HH:mm:ss")
    );
});

fiddle

Here small hh for 12-clock system and HH for 24 clock system.

answered Mar 12 '14 at 12:16

setec

15,506
3
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check fiddle, it have link to it - momentjs date time lib – setec Mar 13 '14 at 06:58

Change GMT time format to 24 hours javascript

3 Answers3