Winter in the northeastern U.S. is damn depressing because the sun sets at basically 3:30-4:30pm. If you sleep in on a weekend, you get max 4-5 hours of sunlight (feels like less because the sun is so low and thus long twilights). Kids coming home from school have zero after school time with sunlight.
I know various people who work in shifts. It's really bad for your rhythm. It takes months before people find a way to deal with the effects. It's worth it due to the additional money they earn, that's it.
But I worked blue collar job the first ten years of working, so 7 to 5, and for a while 5AM to 6PM (six days a week). I don't think many people on this thread understand what it means to wake up between 5:30 and 6:00 AM every day (depending on your commute) to get to work.
They also seem to ignore Arizona. 7.5 million people all happily living their lives without dropping like flies from seasonal-affective disorder.
I mean if you work night-shift, morning shift, evening shift, you already have weird circadian rhythms, and out-of-sync school schedules.
And yet, somehow, they seem to function as humans. So maybe that 1 hour difference for 4 months a year won't actually result in the zombie apocalypse.
People will adapt just fine.