Same issue. I can't change the time manually because I get a message saying I have restrictions. And I suppose the restrictions could be removed through the screen time application. And Screen Time crashes every time I try to open it and closes automatically.
Cbldn
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution