Applied in 2015 around early November, heard from Loughborough within a day, York, Birmingham and Southampton within a week and then Warwick was about month, might have been a couple. But if this question is because you’re concerned about having not heard, timelines will completely vary by application, will likely be slower over Christmas, and many universities may not reply until after the 15th January. Try your best to put it out of your mind
How long did it take previous and current applicants to receive offers from their chosen universities?
 Official Fastest and Slowest Offer Senders
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There is no preset timetable. Trying to second-guess all of this will drive you nuts.
All you can do is wait, however frustrating that feels.