Yes, my T is very fluid and rarely sticks to the time. He usually starts late and therefore ends late. I never feel shortchanged and always let him do the clock watching. I trust him to end the session when it is right to do so. I actually have no idea if we meet for 50 minutes or 65. My daughter's T, on the other hand, starts and ends precisely on time. One thing my T is very firm on is that he gives himself one day a week off and he is very strict about not scheduling appointments on this day. I think that is great and have no problem with that.