I need the next flow:
var a = new Date(1337324400000, \'Europe/Amsterdam\'); //+2h
console.log(a); // for example 12:00 Mon ...
a.setTimeZone(\'Europe/Kiev\'
UPDATE: there is another one now:) https://github.com/mde/timezone-js
A timezone-enabled, drop-in replacement for the stock JavaScript Date. The timezoneJS.Date object is API-compatible with JS Date, with the same getter and setter methods -- it should work fine in any code that works with normal JavaScript Dates.
no there is not
But you can use moment.js to make it easier http://momentjs.com/docs/
You still need to know each offset so you will need mapping like {"Europe/Amsterdam":2,"Europe/Kiev":3}