The social network has confirmed a sign-in problem that's kicking out hordes of users (so far, mostly on Android) and preventing them from logging back in.
Also, TweetDeck on the desktop is listing every new tweet as a year old.
Time warp bug causes tweet chaos
29 December 2014
Did your Twitter app suddenly give you the boot or otherwise behave strangely? It's not just you. Many Twitter users faced their own millennium bug-style date crisis today.
