react-timer/src/SecondsTohhmmss.js

A simple timer component

let SecondsTohhmmss = function(totalSeconds) {
  let hours   = Math.floor(totalSeconds / 3600);
  let minutes = Math.floor((totalSeconds - (hours * 3600)) / 60);
  let seconds = totalSeconds - (hours * 3600) - (minutes * 60);

  // round seconds
  seconds = Math.round(seconds * 100) / 100

  let result = (hours < 10 ? "0" + hours : hours);
      result += ":" + (minutes < 10 ? "0" + minutes : minutes);
      result += ":" + (seconds  < 10 ? "0" + seconds : seconds);
  return result;
}

module.exports = SecondsTohhmmss;