It really depends on the university and the time you have applied (which is a little late to be readily accepted). Most of the offers I received took less than 3 weeks, however, I had one that took exactly 2 months to give me an offer. Try to not overthink it. If you have a good CV, you may take the place. This is the month when Universities confirm which students accept the offers. They may be waiting to verify if there is an available place to give you.