"Hi, our family's switched from observing the clock, like everyone else in school, to operating on a schedule that is in rhythm with the ebb and flow of sunrise through the year. From now on, we'd like our kids' school attendance and lesson times to start and finish on a solar timescale. Perhaps a separate buzzer tone could be set up to convenience any kids who will be running their day according to the sun. We do understand the challenge to teachers in accomodating this natural schedule alongside other students who stick with the more familiar clock-based one, but hey - the sunlight is the convention we follow."
I mean I live in quite a hippy place but that just ain't gonna fly.