My school had a morning and afternoon shift (I think this is common in my country). You would get assigned to the A or B shift and rotate weekly, so one week I would go to school in the morning at 8am and the next one in the afternoon at 2pm. Even though it was harder to wake up for the 8am classes, I think it was better than staying until 7pm in school when it's already dark and there is no day left for play. It was torture waking up early, esp. in the cold winters, but having to walk (often run) 2 or 3 km to school to come just in time would stimulate the wake-up.