Capture client time zone???

[groovything]

I really want to get the time zone of the person browsing my website.

I know I can get the server time zone like:

<? echo date("T"); ?>

but can i capture the time client side?
if not, i have to make the user select their time zone from a list of more than 100 zones - not very user friendly.

[Ceril]

100 Time Zones O_O Now I think you've been smoking pot or something.

The only way I know of doing this is to, lets say the user signs up via a form. On this form is a hidden input called: "client time" which is populated via javascript with the client machines time, then just compare vs server time(and its timezone!) and voila you will all of a sudden have a timezone for the user... then if it is false you still of course got to have a selection for the user with the option of choosing timezone... I might be flying about wildly here and its a more obvious way :-)