I happened to be watching ABC World News Tonight on News 24 earlier, which included an article about how teenagers were the most sleep-deprived group:
With most high schools' classes starting at 7:30a.m....
07:30‽ No wonder American kids are so screwed up.
For the record, in the UK school nominally starts at 09:00 although we had to arrive at 08:45 for registration. It generally finishes some time around 15:20 although some private secondary schools go on to 16:30.
Hey, this probably explains why Americans like coffee so much.