Elementary school was 9:00 AM to 3:30 PM.
Middle school / junior high was I think 8:50 AM to also around 3:00 PM or 3:30 PM.
High school was 7:50 AM to 2:50 PM.
Then I was in Cross Country/Track after that, which started at around 3:00 PM and usually lasted to around 6:00 PM.