I need help setting a countdown timer for Harold Camping's prediction of Judgment Day?

I downloaded a countdown app for Windows 7, but I don't know what time the rapture is supposed to start occurring. (My understanding is it follows the time zones around the world). How many hours are left on the clock until the first part of the world is to be raptured?
Update: @enough - No, my name is really Ryan, haha.
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