In past years, our team has gone Monday - Friday after school until as late as 10:30pm (however, the leave time varies and usually reaches this extreme closer to ship-date). Usually, by then, the number of kids has whittled down to those who are busy working on something and have lost track of the time. And on Saturdays from 9am - 4pm (give or take a few hours).
I don't know how any other teams handle their late nights, but our parents support us by scheduling a different parent to bring meals. Each weeknight, a different parent comes with salad, pasta, pizza, chicken, and more, for the team to eat.
On Saturdays, we have a parent bring bagels or once, pancakes, for breakfast and another to bring some sort of mass sandwich or otherwise for lunch.
This year, we are considering establishing a weekday which we take off to catch up on homework and sleep, inspired by one of our teammates.
Hope this different team perspective helps!
