

Moving and traveling between timezones is still confusing, like someone else commented that pilots use UTC to avoid issues of timezones to make it easier to communicate.
UTC doesn’t fix things it just moves the issues around. The sun rises and sets at different times in different places so we will effectively still have timezones in a sense depending on daylight and working hours.
I think the real answer to ops question about why don’t we all move to UTC is because it takes effort and money to get everyone and everything to change for no benefit or incentive
Seems exaggerated. If you want to call a place you need to figure out how many hours ahead or behind they are similar to now, then you know if its dark. We use UTC for a lot of stuff already so its not like it doesn’t work. It just changes the numbers but time is still the same