What exactly do you mean? A list of what country is in which timezone( http://www.iama.edu/JetLag/Images/TimeZone_big.jpg )? Or Being able to set your own timezone (Control Panel on the left, Board Preferences)? Or something totally different.

When viewing someone's profile it would be easier to ...

Would it be possable to get a timezone clock to make it easier for people in other countries to know when someone will be online

Cheers
Jamin