Any one know how to make VB with CMS 4.X detect timezone automatically?

[allchange]

I really want to detect users time zone automatically when they sign up.
Is there a way?
If so, how accurate is it?

[your24hourstore]

there is a mod that gives extra ip info and that would include the area they are on the internet at like country states

[allchange]

there is a mod that gives extra ip info and that would include the area they are on the internet at like country states

Thanks but could you give me a link to that mod?