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how to use timezone offset in nodejs


how to use timezone offset in nodejs  using -'javascript,node.js,datetime,timezone'

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'); //+3h
console.log(a); // 13:00 Mon ...


Is there such possibility in nodejs utils api ?
    

asked Sep 18, 2015 by rajeshujade
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4 Answers

0 votes

You can use node-time, as follows:

var time = require('time');

var a = new time.Date(1337324400000);

a.setTimezone('Europe/Amsterdam');
console.log(a.toString()); // Fri May 18 2012 09:00:00 GMT+0200 (CEST)
a.setTimezone('Europe/Kiev');
console.log(a.toString()); // Fri May 18 2012 10:00:00 GMT+0300 (EEST)
answered Sep 18, 2015 by rajeevr642
0 votes

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}

answered Sep 18, 2015 by suyesh.lokhande
0 votes

See Timezone package in npm. It has everything needed built in and is pure JS and seems to be the best timezone handling library available.

https://www.npmjs.com/package/timezone

http://bigeasy.github.io/timezone/

var tz = require('timezone/loaded'),
    equal = require('assert').equal,
    utc;

// Get POSIX time in UTC. 
utc = tz('2012-01-01');

// Convert UTC time to local time in a localize language. 
equal(tz(utc, '%c', 'fr_FR', 'America/Montreal'),
      'sam. 31 déc. 2011 19:00:00 EST');
  • Timezone is a MicroJS library in pure JavaScript with no dependencies that provides timezone aware date math and date formatting.
  • Timezone uses the IANA Database to determine the correct wall clock time anywhere in the world for any time since the dawn of standardized time.
  • Timezone formats dates with a full implementation of strftime formats, including the GNU date extensions.
  • Timezone represents time in POSIX time and local time using RFC 3999 date strings.
  • Timezone is a full featured standards based time library in pure JavaScript for under 3K minified and gzipped.
answered Sep 18, 2015 by maurya
0 votes

Moment.js now has Moment Timezone

Install:

npm install --save moment-timezone

Use:

var Moment = require('moment-timezone');
Moment().tz('America/Los_Angeles').format();
answered Sep 18, 2015 by sanjaypal1983

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