Sure, my point is just that all of those schedules are arbitrary. We made them all up.

One way might require less rescheduling, and that's valid, but these discussions out in the world tend to go to "but everyone does X at Y time and it will be dark out!" as though this isn't all made up and changeable.

I also think that learnings from previous attempts decades ago may not apply as strongly today. In the US at least I think people's schedules tend to be much less fixed on the rigid 8am/9am to 5pm in-office schedule than they were 10 or 20 years ago. The number of people out driving at all hours of the day all week speaks to that.

The world used to revolve around everyone being in-office next to their phone during defined expected business hours. Today my mortgage broker is texting me from a coffee shop.