Time is time, whether it is 1:00 pm or 13:00. Some schools do use it. If you are so entranced, maybe you should consider a military academy. 
One thing I don’t like is that it is confusing on many college scheduled to tell Tuesdays from Thursdays. For brevity, they often use “T” for Tuesday, and “R” for Thursday. The number of college freshman who have been thrown off by this, and missed or tried to attend on the wrong day is quite large. It is demoralizing your first week of college to have this happen – colleges should use “Tues” and “Thur” instead.