How to automatically detect user's timezone?

Question

hi i am creating a web application , where if a user register we will show the created date.

For that we are using Current time stamp in my sql table.Which shows server Time.But we don't know how to convert Time according to user time zone.

Because we are not getting user's country .

Can any on help me to fix it

Thanks in advance :)

Answer 1

Use javascript solution

http://www.onlineaspect.com/2007/06/08/auto-detect-a-time-zone-with-javascript/

Demo should show your timezone in select box.

http://onlineaspect.com/examples/timezone/index.html (Dead link)

Answer 2

You can't get a user's timezone on the server side, and you can only make a guess at it on the client side.

If you rely on getting the user's IP address then you could geolocate that and deduce a time.

The way this is usually done is by asking the user (when they register, for instance) what timezone they are in and then use this in your time calculations.