Which would make moving or travelling between time zones confusing. Exactly the problem op wishes to solve. Have they considered when the day moves from Monday to Tuesday? Is that at midnight still?

20:00? That's a reasonable time here. Businesses here are usually open from 23:00-10:00.

Thank goodness it's Thursday, though, the weekend is about to start.

Fun personal fact about me: I didn't learn to tell time until I was 9 years old. I was effectively blind until I was 8 when I first got glasses, so I had never actually seen a clock before then.

Don't get me wrong, I already had a concept of time, every time my parents or teachers would say the time numerically, but I simply never actually saw a clock in person until the year after I finally got glasses.

One day when I was 9, my parents left me home alone to briefly go to the local store. Still dumbfounded by my new glasses and how clearly I could see stuff, I started looking at stuff on the walls.

Then I saw the analog clock, just ticking away. I sat there for 5 minutes, just staring at it, counting every single tick of the second hand, and carefully paying attention to the slow movement of the minute hand.

Then I thought to myself 'Well shit, now I get it!'

I more or less figured it out all on my own. But if it was somehow a confusing universal time as OP suggests/asks about, I wouldn't have been able to figure it out on my own and would have still been really confused.