There has been times my T is skillful at this and there go have been times he has been been unskillful at it. In the early months, he would grab his appointment and this would be a cue that we were about to end. He would say something like confirming our next appointment. Now that we have a regular schedule, he doesn't do this anymore. Most of the time he says "were going to need to end soon" or "let's continue this next time" or "this is a good place to end". This generally works okay for me unless I'm in the middle of really difficult stuff.
I had
a horrible experience once where he ended abruptly and I was unable to pull myself together afterwards. The aftermath was dangerous. I still think he bordered on negligence with that one by letting me leave in that state.
Now, during really difficult sessions, he will tell me "we have 10 minutes left" or " have you noticed the time?" when there is 10-15 minutes left. This feels cold to me but I up understand that he is trying to avoid what happened before. I think he could improve in this area.