Waking up at 8:00 would help people get the day started. Kids would be refreshed and able to do work and most likely help them with their grades. Because they are ready to hit the books. Kids would be more focus and not groggy. It gives them time to prepare for the day.
It would also help the teachers. They can get here later or early. It gives them a longer time to prepare for the day. They would be more organized and hopefully less grouchy. The schools would save money from not