Backwards Ticking Clock in Psych Ward

Many months ago I stayed at UCLA psych ward for a manic psychotic episode and while I was there I came to the fully solid and accepted collision that the digital clock in my room ticked backwards. Like it would never go up by 1 digit for long, it would soon go back one only to then go up again, or then skip a digit. Many of the minutes weren’t full minutes, but were literally around 10, 15 seconds. I had this same conclusion even after being treated which took a while. Any similar experiences or thoughts? I don’t think I was still hallucinating or delusional by the time I got out. It’s been a while lol but no one believes me when I tell them this and I wanna get to the bottom of it