These "problems" are trivial. The day changes at midnight which is 12:00 AM by the clock. There is no ambiguity. Midnight is not literally the middle of the nig

These "problems" are trivial. The day changes at midnight which is 12:00 AM by the clock. There is no ambiguity. Midnight is not literally the middle of the night. The minute on the clock will be correct by definition, nothing will change. Sundials are already wrong. You'll need to try a lot harder to convince me that this is a bad idea. All these arguments based on sun position make no sense in a world where people already live in places where the sun literally never sets or never rises for months, and people already live in time zones offset many, many hours from "correct" time. The sky doesn't fall!