Quote Originally Posted by HEC View Post
Well - keep in mind the "working" / playing time mostly relate to japanese time zone.
Only the Japanese Data Centers have maintenance based on the Japanese time zone. The NA Data Centers generally have maintenance from 12:00 a.m. - 6:00 a.m. PST, because that's the lowest traffic period in North America. (I think that would actually be peak evening hours in Japan.)

There's always the conflict between whether they should choose times to inconvenience the fewest players (i.e. always go with the lowest traffic period of the day) or choose various different times so the inconvenience is spread out and they're not always bothering the same players. They've clearly chosen the former approach.