It does, found it pretty easily. Tucked into the account settings under a section for play controls, right next to the deposit limit option. Set mine to two hours, and it logs me out automatically once that time is up, no way to keep playing past it without manually resetting the timer. Tried it out over the weekend and it worked exactly as expected, popped up a small warning a few minutes before the cutoff too. Full list of these kinds of tools, including the time-out feature, sits within the responsible play section of potterslotscasino.co.uk, worth a browse for anyone wanting more control over sessions. Resetting the timer took just a couple clicks once I wanted to extend a session. Nice feature to have running quietly in the background