Really, do they have to shut down the whole server at 9pm?? which is the prime time for entertainment and relaxations? Why don't the Oceanic people get to enjoy as much of the game and follow the West Coast of the US time ? For about 20 million people of Aussies and about 5-10 million New Zealanders and other Pacific and South East Asian countries out there voice up for you rights.. You better get what you paid Equally to the Americans, because I dont think Oceanic time zone people are paying any cent less than the Americans. I hope they could make the Shut down times different. Thanks

I've commented on this in the past here, and the answer remains relevant:

http://us.battle.net/wow/en/forum/topic/3082032916#16

Actually, because of the way cross realm instances work and the long duration of an actual maintenance period, it wouldn't be more convenient for anyone involved. I can't go into too much detail, but such a change would provoke significant technical issues and periods where entire portions of the game world wouldn't be available. There was actually a time prior to cross realm instances when Oceanic maintenance periods were shifted to be more convenient for Oceanic players, but it was necessary to rescind that change for the sake of the realms as a whole. Hopefully, having access to cross realm instances over the course of the week makes up for the less convenient maintenance periods.

On that note, since rolling restarts don't have durations that are as long as full maintenance down times, when possible we shift the downtime for Oceanic realms back so there are fewer interruptions during prime time play. This change has been in effect for some time, though perhaps it hasn't been as apparent since I haven't seen feedback on that change here.