Even though some may stay up later, more practical students will use the extra hour to get to sleep at a reasonable time. Others may use this time to finish homework or prepare for an upcoming test, but any way around it this time will be used.
I would also like to point out that by starting later, the school schedule will better correlate more with the average adult work schedule. A 9-4 school day will prepare students for the working world that they will enter after school. It would also keep parents more involved in their childrens' lives.
Even though some may stay up later, more practical students will use the extra hour to get to sleep at a reasonable time. Others may use this time to finish homework or prepare for an upcoming test, but any way around it this time will be used.
I would also like to point out that by starting later, the school schedule will better correlate more with the average adult work schedule. A 9-4 school day will prepare students for the working world that they will enter after school. It would also keep parents more involved in their childrens' lives.