It's possible. They are generally in bed by 8:30. We have tried experimenting with pushing it back to 8 and that did not have an obvious effect on their mornings and did make evenings a lot more miserable. Going even earlier than 8 is not really feasible given that dinner generally can't happen until 6pm.

(Our no-longer-elementary-schooler, by the way, never really had this problem. He just seems to sleep a lot less in general.... kids are different.)

Anecdotally based on my kid (n=1), stopping screen time about an hour before bedtime helps.

However, she still seems wired to fall sleep at a certain time, and we finally decided that fighting biology is a losing battle. The strategy of moving bedtime a little bit earlier each day didn't work at all.

> maybe they would benefit from an earlier bedtime?

One can try but you will be limited by biology: The problem is that our internal clocks are reset by daylight. You can't just shift yourself to another timezone, since your circadian rhythm will always set itself back to the respective local time. So if your brain prefers you to go to sleep and to wake up at certain points it will always be relative to "local (sunlight) time", not relative to human clock time.