Good luck coordinating that.

School and business hours are already fairly arbitrary where I live. The only places observing "standard" hours seem to be banks and even many of those stay open later in the evening these days. Meanwhile the schools do everything based on juggling a limited number of busses meaning that start and end times are staggered over a period of 3+ hours. You see evidence of this in traffic patterns as well. It starts early with the trades and runs well into the late morning due (AFAIK) to tech.