I got my acceptances about 4 weeks before the deadline to accept. So I got UofT about March 20 and U of Manitoba only recently.
By the way, I am an American (also applying for PhD programs not Masters) so they may have made decisions earlier for Americans/Internationals since US schools do have an April 15 deadline.
I've been quite surprised at how late Canadian universities are-- based on the posts to this website. My sympathies for having to wait even longer. I am done with the anxiety of waiting and now on to the terror of actually planning to move and try to prove that UT didn't make a stupid mistake by accepting me.
Good luck!