Yeah, I have heard about the rest of the world, lol.

But considering most main servers and stuff are in the USA, and the major backbones are here, I would assume that it is more likely that people would choose the 4:30 AM EST time to backup/shutdown/restart/archive, than the other way around.

I could be wrong of course, but we'll hear the explanation when a mod steps in and offers an answer

You people can't even buy itunes songs yet, of course the US comes first, others afterwards, it's simple common sense.