ethaizone

// Original from http://stackoverflow.com/questions/1638337/the-best-way-to-synchronize-client-side-javascript-clock-with-server-date
// Improved by community and @jskowron

// Synchronize client-side clock with server time using an approximation of NTP
let serverTimeOffset = null;

function getServerTime(callback) {
  if (serverTimeOffset === null) {
    const scripts = document.getElementsByTagName("script");
    const currentScriptURL = scripts[scripts.length - 1].src;