I call my T from time to time, but I definitely reserve calls after hours to emergencies. If it can wait to the next day, that is what I do. He has no problem talking to me after hours in an emergency. Our conversations have ranged from a few minutes to over an hour. But I know my T well enough to know that if I called him after hours without it being a strong reason, he'd let me know that I need to use my coping skills better to get through the discomfort and call him when he's at work the next day. I don't have a problem with that. That is just good boundaries.

You have to base your decision to call your T on whatever boundaries your T has set up with you. They are all a bit different.