High school kids bedtimes?

C
My Hubby's son will be entering high school in the fall and he asked us if he could have a later bedtime.  Currently he goes to bed at 8:30 pm and no electronics or cell phone after 8 pm.  Sometimes exceptions are made for huge homework assignments or projects on an as needed basis.  What time do you send your freshmen aged high schoolers to bed?  Thank you.