Lunar New Year Extended By A Day - Ends Feb 13 (EU Feb 14)
Due to the late Hearthstone patch on Tuesday, the Lunar New Year event is extended an extra day! Enjoy those quests!
Quote from Jesse Hill
Due to the delays we hit yesterday with recent update pushing into the time for the Lunar New Year event, we are going to be extending the end date by a full day. The event will now last until February 13.
Cheers and thanks again for your patience!
Our Lunar New Year celebration only lasts through February 14 (19:00 CET), so be sure to join the party before it’s over! (Source)