text: var zoneinfo = require('zoneinfo');
  var TZ = zoneinfo.TZDate;
  
  var zones = {};
  zoneinfo.listTimezones().forEach(function (z) {
      var d = new TZ();
      d.setTimezone(z);
      zones[z] = d._utcoffset();
  });
  console.log(JSON.stringify(zones));
  