After about 15-20 minutes of check-in, he'll say something like 'Should we pause here? Or is there anything else you'd like to talk about?" or "This seems like a good place to pause, unless you want to bring up something else?" I can bring up another issue, if I'd like, but usually I say "no" and we wrap up within 5 or so minutes.

When we had weekly sessions and I took up the whole 45/50 minute session, I'd get a 5 or 10 minute warning of "Well, were running up against time" or something like that.

It sounds sort of artificial now that I write it out, but it's never seemed that way. My T isn't gifted in all things (*cough* punctuality *cough*) but he's quite good at this. It's never seemed abrupt or rude, always natural.