Normalize m:ss, mm:ss, etc., to h:mm:ss

convert-mm-ss-durations.js

$table.find('td:nth-child(7)').each(function () {
  var value = this.innerHTML.trim(),
      parts = value.split(':');
  // convert mm:ss to hh:mm:ss
  if (parts.length === 2) {
    // zero-pad minutes
    if (parts[0].length < 2) {
      value = '0' + value;
    }
    this.innerHTML = '00:' + value;
    // console.log('00:' + value);
  }
});