Kotaku reports many users of older PlayStation 3 consoles are unable to go online and play some PS3 games offline as well, due to a calendar bug. Sony is aware of the issue and says they've got many people working on fixing this issue asap.
Around the world, PlayStation 3 consoles simply aren't working like they're supposed to, with an error — Error: 8001050F — preventing people from not just going online, but from playing some PS3 games offline as well. [Post updated throughout day.]
From Europe to the Americas to, well, my house in Australia, users (mostly of older "Fat" consoles, those released before 2009's "PS3 Slim") have been complaining since Sunday that upon booting their consoles up, they're unable to sign into their accounts, check their trophies, use dynamic themes or access the PlayStation Network. That's fine, Sony say there are PSN connection problems, and that they are "looking into it".