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JavaScript seconds to time with format hh:mm:ss

Seems to me that this is a simple task, but I have not yet managed to make this work.

Essentially, I am starting with a string that contains an ISO-formatted time (HH:MM:SS) and I am wondering how to convert it to H:MM am|pm using JavaScript.

Any help is much appreciated.

Answer 1

This simple function should do the trick:

function convertTime (isoTime) {
  var hours   = parseInt(isoTime.substring(0, 2), 10),
      minutes = isoTime.substring(3, 5),
      ampm    = 'am';

  if (hours == 12) {
    ampm = 'pm';
  } else if (hours == 0) {
    hours = 12;
  } else if (hours > 12) {
    hours -= 12;
    ampm = 'pm';
  }

  return hours + ':' + minutes + ' ' + ampm;
}

Should be self-explanatory. See this jsfiddle for example: http://jsfiddle.net/nscXP/3/