Question

58

milliseconds to time in javascript

rated 0 times [ 64] [ 6] / answers: 1 / hits: 142040 / 12 Years ago, mon, march 19, 2012, 12:00:00

I have this function which formats seconds to time

 function secondsToTime(secs){

    var hours = Math.floor(secs / (60 * 60));

    var divisor_for_minutes = secs % (60 * 60);

    var minutes = Math.floor(divisor_for_minutes / 60);

    var divisor_for_seconds = divisor_for_minutes % 60;

    var seconds = Math.ceil(divisor_for_seconds);

    return minutes + : + seconds; 

}

it works great but i need a function to turn milliseconds to time and I cant seem to understand what i need to do to this function to return time in this format

mm:ss.mill

01:28.5568

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aidan

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answered 12 Years ago harrisa · Accepted Answer

Lots of unnecessary flooring in other answers. If the string is in milliseconds, convert to h:m:s as follows:

function msToTime(s) {

  var ms = s % 1000;

  s = (s - ms) / 1000;

  var secs = s % 60;

  s = (s - secs) / 60;

  var mins = s % 60;

  var hrs = (s - mins) / 60;



  return hrs + ':' + mins + ':' + secs + '.' + ms;

}

If you want it formatted as hh:mm:ss.sss then use:

function msToTime(s) {



  // Pad to 2 or 3 digits, default is 2

  function pad(n, z) {

    z = z || 2;

    return ('00' + n).slice(-z);

  }



  var ms = s % 1000;

  s = (s - ms) / 1000;

  var secs = s % 60;

  s = (s - secs) / 60;

  var mins = s % 60;

  var hrs = (s - mins) / 60;



  return pad(hrs) + ':' + pad(mins) + ':' + pad(secs) + '.' + pad(ms, 3);

}



console.log(msToTime(55018))

Using some recently added language features, the pad function can be more concise:

function msToTime(s) {

    // Pad to 2 or 3 digits, default is 2

  var pad = (n, z = 2) => ('00' + n).slice(-z);

  return pad(s/3.6e6|0) + ':' + pad((s%3.6e6)/6e4 | 0) + ':' + pad((s%6e4)/1000|0) + '.' + pad(s%1000, 3);

}



// Current hh:mm:ss.sss UTC

console.log(msToTime(new Date() % 8.64e7))