That would probably depend on where you are and what sort of a service you're seeking. If you're in a crisis, you can probably get some sort of service within the same day. If you're not in a crisis, your wait time could be up to several months.
I know we had a problem with children's wait times and reduced it from about 60 days down to 30 days. But in my opinion, 30 days is still too long.
I think most of the provinces have been doing work to try to reduce these wait times, and they've tackled it in different ways, of course. It's not satisfactory, but it's better than it was.