January 13th, three days away, is the last day to get a 25% bonus when you convert your hotel points to Avios.
The obvious question is whether you have to transfer out of the hotel programme by the 13th, or they need to be received by BA by the 13th. I am assuming it is the former, as different schemes have different timeframes for sending points across.
(If for some reason you transferred before the 13th but did not get the bonus automatically, I am sure BA would add it manually. Keep a screenshot of the rules which do not specify which date is the important one.)
(To see our complete list of all current hotel promotions for the major chains, click here to visit our ‘Hotel Promos’ page or use the link in the menu bar at the top of the page.)