Time as proscribed by clocks and calendars is a human construct as seen in the different cultural calendars in use around the world, Chinese, Jewish, Julian, Gregorian and my favorite the ever-changing Day Light Savings time. I can attest to the fact that the fish in east Tennessee don’t understand DLS. They understand sundown and insect hatches regardless of what your watch says. What that has to do with quantum physics I don’t know. But life was better when we all lived much as the fish in those mountain streams, ordering out lives by nature time, not mans.
Constructed around the natural world of days, seasons and years even if different cultures did things a little different. Animals also live by days, seasons and years and don't need clocks and calendars to know what time it is. I haven't used an alarm clock much in my life and can't stand DLS. I wake up shortly before dawn regardless of what time it is.
Living in primitive conditions for one’s entire lifetime is not pleasant. Those who did so just didn’t know any better.