phpjs/workbench/datetime/timezone_open.js

php.js offers community built php functions in javascript

function timezone_open(timezone) {
  // http://kevin.vanzonneveld.net
  // +   original by: Brett Zamir (http://brett-zamir.me)
  // -    depends on: DateTimeZone
  // *     example 1: timezone_open('Europe/Prague'); // Can't convert to string in PHP; returns the DTZ object
  // *     returns 1: {}

  return new this.DateTimeZone(timezone);
}