The PlayStation UK Blog is warning gamers in Great Britain that PSN in the region will be down on Monday, the 12th November.
The site warns:
PlayStation Network is offline for scheduled maintenance from 06:00 to 09:00 GMT on Monday 12 November 2012.
During the maintenance, you will be unable to access the following services:
* PlayStation Store on PS3 and PSP.
* PlayStation Network Account Management.
* PlayStation Network Account Registration.
In addition, you will not be able to sign in to PlayStation Network from eu.playstation.com.
During this maintenance, you can continue to collect in-game trophies and these will be updated on your profile once PlayStation Network is back up and running.
Gamers can track the progress of maintenance on the official Twitter feed during the downtime.