How to get the time of specific timezone using javascript, but without being relevant to the current system time?

Question

Now, before you mark this as a duplicate, please note that all the useful answers in the possible duplicate provide functions which work in relation to the current system time, which I cannot accept.

What I want, is that the current time in, say, for example, New York, be consistent to all users, no matter what their time settings are.

For example, I have two computers here, and one is 3 seconds behind the other, and this leaves an unacceptable gap, as my task involve pinpoint precision (slightly exaggerated, but you know what I mean).

How can I overcome this? Must I get the server time and somehow convert it? If so, I'm using PHP.

Can you explain a bit more clearly what it is you need to accomplish? — T.J. Crowder
– T.J. Crowder, Commented Feb 12, 2013 at 10:48
possible duplicate of JavaScript NTP time - You're wanting to sync possibly inaccurate clocks client-side, for which NTP is the right protocol. On top of that you need to do your timezone calculations. — deceze
– deceze ♦, Commented Feb 12, 2013 at 10:54
Not a dup, and that link is bad because it claims NTP but really is just passing the time in json and not using the NTP protocol at all. — Matt Johnson-Pint
– Matt Johnson-Pint, Commented Feb 12, 2013 at 17:02

Alfergon · Accepted Answer · 2013-02-12 11:11:55Z

1

Hope to not be wrong but javascript is loaded on user machine, not on the server so you will allway get the visitor date/time using javascript. you can use php to get the date/time because is loaded on the server and pass the dates to javascript.

Hope this help

edited Feb 12, 2013 at 11:11

Alfergon

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answered Feb 12, 2013 at 10:53

davnis

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Community · Accepted Answer · 2017-05-23 11:48:51Z

0

You need to use a timezone library to do this in JavaScript. See my answer here.

The scripts are small, but because they require the timezone database, it can get unwieldy for a client application. You're probably better off doing the conversion server side. Perhaps the pytz library will be useful to you.

edited May 23, 2017 at 11:48

CommunityBot

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answered Feb 12, 2013 at 17:01

Matt Johnson-Pint

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