Get server time with AJAX

gistfile1.js

$(function () {
  $.ajax({
    type: 'GET',
    cache: false,
    url: location.href,
    complete: function (req, textStatus) {
      var dateString = req.getResponseHeader('Date');
      if (dateString.indexOf('GMT') === -1) {
        dateString += ' GMT';
      }
      var date = new Date(dateString);
      $('#serverTime').text(date.toString());
    }
  });
});