> I'm trying to decide if you are being sarcastic :)
Bizarrely, no, for some reason I think not having to google "EST to PST" or "AST to MO" or figuring out if someone is in the same day you are is a good thing.
> For people who don't leave their own timezone very often (which is most people), there is thousands of years of background of the concepts of midnight, midday. There is a shared language around the world as to what happens at certain times, which would be destroyed by this.
Interestingly, I have not been alive on the order of millenia ,but decades. So has most of the currently living human population. A large portion of them have also been exposed to the marvels of electrisity, instant global communication, and the understanding that human beings have walked on another rocky body that is not this one.
Midnight and midday has no problem translating into UTC. My midnight is 6. My midday is 18. Neither are bound to the concept of 12 or 0, or am or pm, but to the times where the sun is highest or "lowest" in the sky. That happens at different times at different points on the globe.
> There is a shared language around the world as to what happens at certain times, which would be destroyed by this.
People universally wake up at 7am, go to work from 9 to 5, eat lunch at 12, and eat dinner at 6? The "expected" times to do things don't need to shift, and having a common number translated into local time zones for events doesn't matter if you are communicating across time lines because you are already distant. The only time time zone comes into effect is when you communicate or travel across these artificial bounds, and having to reconsolidate the local cycle to what you are used to is nothing compared to the present day overhead of translating times for meetings and communication across artificial bounds.