All Anime Schools have a central clock, it Otaku Law
[IMG]http://www.crymore.net/wp-content/uploads/2014/01/Witch-Craft-Works-Essential-07.jpghttp://www.crymore.net/wp-content/uploads/2014/01/Witch-Craft-Works-Essential-07.jpg[/IMG]

Well at least a large number of schools have them I just forget if HOTD had one