This reminds me of a YouTube video a saw recently about Japanese timekeeping before Western clocks became popular. They divides they day into an equal number of daytime hours and nighttime hours, so sunrise and sunset were always at the same time of day. The lengths of the hours varies based on the season, so daytime hours were longer than nighttime hours in the summer and shorter in the winter. People's work schedules were fixed, so they had a much longer work day in the summer than in the winter.

Honestly it sounds great to me. Not for purposes that involve precise measurement, but definitely for things like work schedules and meal times.