Much of the middle part of this article is based on: https://www.scientificamerican.com/article/a-chronicle-of-timekeeping-2006-02/ How do we experience time? If we took away our clocks and calendars then what would we be left with? First of all, there is the planet on which we sit, its sun and its moon. The planet turns on its axis giving us the day. The apparent movement of the moon through the sky, its waxing and waning gives us the month. And movement of the earth around the sun gives us the year. Time is cosmic.
The development of unnatural time occurs in the earliest cities.