Many of the December 1st application deadline schools will start to reach out to applicants to inform if they have received an interview during the middle of December and early portion of January. Interviews typically take place around a month after. Unfortunately, some schools funding situations make the process for acceptance/rejecting complicated and it may stretch out hearing back until much after an interview occurs. All prospective students have until April 15th to decide on accepting or rejecting offers, so you should, in theory get an acceptance/rejection email or letter a couple of weeks before that at the absolute latest. I hope this helps!
