Convert seconds to minutes and seconds in MM:SS format

Question

I want to convert seconds to minutes and seconds in the format MM:SS . The below code is working fine but converting seconds to M:SS format. How can I change it to MM:SS format.

For example, when passing 150 seconds to format(150) giving 2:30 but i need it like 02:30

 function format(time) {   
        // Hours, minutes and seconds
        var hrs = ~~(time / 3600);
        var mins = ~~((time % 3600) / 60);
        var secs = ~~time % 60;
    
        // Output like "1:01" or "4:03:59" or "123:03:59"
        var ret = "";
        if (hrs > 0) {
            ret += "" + hrs + ":" + (mins < 10 ? "0" : "");
        }
        ret += "" + mins + ":" + (secs < 10 ? "0" : "");
        ret += "" + secs;
        return ret;
    }

How does `time` in `format(time)` looks like ? Are you passing seconds or minutes ? — Always Helping, Sep 29 '20 at 04:16
thanks for confirming - you can simply do another ternary operator to add zero if `minutes are > 0` - like this => `ret += "" + (mins > 0 ? '0'+mins : mins) + ":" + (secs < 10 ? "0" : "");` — Always Helping, Sep 29 '20 at 04:22
This question will help in details as well [JavaScript seconds to time string with format hh:mm:ss](https://stackoverflow.com/questions/6312993/javascript-seconds-to-time-string-with-format-hhmmss) for other possible options you want to choose. — Always Helping, Sep 29 '20 at 04:25

score 2 · Accepted Answer · answered Sep 29 '20 at 04:18

You could use padStart for min

ret += "" + String(mins).padStart(2, '0') + ":" + (secs < 10 ? "0" : "");

function format(time) {
  // Hours, minutes and seconds
  var hrs = ~~(time / 3600);
  var mins = ~~((time % 3600) / 60);
  var secs = ~~time % 60;

  // Output like "1:01" or "4:03:59" or "123:03:59"
  var ret = "";
  if (hrs > 0) {
      ret += "" + hrs + ":" + (mins < 10 ? "0" : "");
  }
  ret += "" + String(mins).padStart(2, '0') + ":" + (secs < 10 ? "0" : "");
  ret += "" + secs;
  return ret;
}

console.log(format(150))

score 1 · Answer 2 · answered Sep 29 '20 at 04:19

1

You can use this

ret = (hrs>0?("" + hrs + ":"):"") + (mins < 10 ? "0"+mins : mins) + ":" + (secs < 10 ? "0"+secs : secs);

answered Sep 29 '20 at 04:19

Shubham Srivastava

1,807
1
10
17

Hung.LK · Answer 3 · 2020-09-29T04:23:21.353

1

Let try:

ret = (hrs ? hrs + ":" : '') + ("0" + mins).slice(-2) + ":" + ("0" + secs).slice(-2)

Goodluck :D

edited Sep 29 '20 at 04:23

answered Sep 29 '20 at 04:20

Hung.LK

86
5

you need fix hours is optional in question – Shubham Srivastava Sep 29 '20 at 04:21

Convert seconds to minutes and seconds in MM:SS format

3 Answers3