[mklepaczewski]

It actually solves a lot, and I contact people on all continents multiple times per day. Currently when you want to schedule a meeting with a person in another timezone you need to do a bit of very confusing math (it's simple addition and subtraction, but one-off errors are rampant) and translate their time to yours. Most of the time both parties try to do it and it gets confusing. Lots of "your time or my time" questions. With universal time you both work with the same clock.

[dudul]

You're right. Let's completely change how humanity has done it for centuries so you and your friends don't spend 32sec looking up "current time in X" 2 or 3 times a day.

You would still need to do the effort of understanding what 10pm means for the other party. 10pm may be your lunchtime while it's the middle of the night for them.

[globular-toast]

Don't think people have been having calls across continents for centuries. Just 100 years ago the vast majority of the population would never have encountered another time zone.