Full PlayStation Network service restored for all PS3 owners.
Sony Computer Entertainment Inc. (SCEI) is aware that the internal clock functionality in PS3 systems other than the slim model recognised the year 2010 as a leap year.
Having the internal clock date change from 29 February to 1 March (both GMT), SCEI has verified that the symptoms are now resolved and that users are able to use all PS3 systems normally.
If the time displayed on the XMB (XrossMediaBar) is still incorrect, you can go to Settings > [Date and Time Settings] to adjust time settings manually or via the Internet (see screenshots).
SCEI is investigating the issues raised including users' trophy data and will be able to give more information shortly.
Keep an eye on the PlayStation Blog at blog.eu.playstation.com or check back on eu.playstation.com for any further updates and we apologise for any inconvenience this may have caused.