Spotted on the Network Status Page :

Downtime scheduled - Downtime scheduled 07/26/2008 5:00 AM London Time / 07/25/2008 9:00 PM Pacific Daylight Time

This is a notification that UK worlds will be updated at 5:00 AM London Time on the 07/26/2008. The estimated downtime will be 1 hour.

- SOE Operations team

Plan accordingly!