What you’re describing is LITERALLY the system we have. UTC is a global, coordinated time that tracks solar time to a precision of less than a second. As far as my computer is concerned, my time is UTC (technically GMT, but they both refer to the same time) minus 6 hours. We all could choose to say, “hey, wanna meet for dinner at 3AM?” and have that be a normal thing to say in my area, and an odd thing to say odd in Europe… but nobody wants that.
What you’re describing is LITERALLY the system we have. UTC is a global, coordinated time that tracks solar time to a precision of less than a second. As far as my computer is concerned, my time is UTC (technically GMT, but they both refer to the same time) minus 6 hours. We all could choose to say, “hey, wanna meet for dinner at 3AM?” and have that be a normal thing to say in my area, and an odd thing to say odd in Europe… but nobody wants that.