#0 - March 24, 2010, 9:06 a.m.
Blizzard Post
From our Service Status Forum.

http://forums.worldofwarcraft.com/thread.html?topicId=23767194884

Q u o t e:
We will be performing rolling restarts on Wednesday, March 24th, beginning at 5:00 AM PDT. Additionally, we will be performing rolling restarts on all Oceanic realms beginning at 12:00 PM PDT, March 24th. Downtime for each realm is expected to be minimal and should be no more than 15 minutes. The overall process will last approximately 1 hour.

Thank you for your patience.