Returns a timestamp corrected for the current timezone, instead of getting the UTC timezone. This can be useful for tracking timed-events in the perception of a user/visitor of your application/website in e.g. Google Tag Manager.

getLocalTimeStamp.js

function getLocalTimeStamp () {
  var currentDate = new Date();
  var currentTime = currentDate.getTime();
  var localOffset = (-1) * currentDate.getTimezoneOffset() * 60000;
  var stamp = Math.round(new Date(currentTime + localOffset).getTime() / 1000);
  return stamp;
}