Facebook API get user local time without FBML

I'm writing a Facebook Iframe canvas application using the Facebook Toolkit. There is a certain action where I need to store the date and time for the action, and in the future I want to render it for the user as a date and time like (10:05 AM 20 September 2010).

The problem here is that each facebook user has his own local date and time. I found a solution using the FBML tag but I'm lo开发者_如何转开发oking for a non-fbml approach.

Any ideas?

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Using FQL:

select timezone from user where uid = <user_id>

see user table