There's a short story "Chronopolis" by J.G. Ballard, about a future where society was separated by watches with different colors, and each color had a different

There's a short story "Chronopolis" by J.G. Ballard, about a future where society was separated by watches with different colors, and each color had a different time slot for things like commute, lunches, and when they could go to the bank...