Formatted relative time

getRelativeTime.js

module.exports = (ms) => {
  var seconds = ms / 1000
  var hours = Math.floor(seconds / 3600)
  seconds -= hours * 3600
  var minutes = Math.floor(seconds / 60)
  seconds -= minutes * 60
  return `${('0' + hours).slice(-2)}:${('0' + minutes).slice(-2)}:${('0' + seconds).slice(-2)}` // 00:13:09
}