Kwill Happy St. Patrick’s Day! You’ll have some time this morning to don the green, since the servers are going to be down for a while:
The US servers will come down on Thursday, March 17, 2011, at 7am PDT for a hotfix and session server maintenance. The expected downtime is 1 hour.
Please note that due to the maintenance occurring during this period, you may not able to log in to the forums.
The UK servers are also getting a patch:
This is a notification that UK worlds will be updated at 4:00 AM London Time on 03/18/2011. The estimated downtime will be 2 hours.