I complain construction starts at 7 because quiet hours start at 11 (and in practice no one enforces them that early). Let's forget circadian rhythm for a sec and my issue isn't how early or late it is. My issue is that its a strict 8 hours window when we know:
- people need between 7-10 hours of sleep depending on age
- most people don't fall asleep instantly
- sleep deprivation is a pervasive problem with significant health implication.
If we (again, forgetting circadian rythm as it makes things more nuanced) move things to start at 5am that's fine, but then things have to stop much, MUCH earlier (they wouldn't).