Would be good for the modern world, but it would take a few generations or more for people to get used to it. People have 9-5 so ingrained in their minds that everytime the discussion of DST comes up, they forget that just changing the work hours is possible. Honestly though, changing time is too much effort for not so much gain, so it is very unlikely to ever happen.
i switched all my devices to UTC about a year ago when a surprise DST transition caught me in a pissy mood.
it’s fairly internalized by now. i don’t think it’s that much harder than developing an intuition for both Celcuis and Fahreinheit temperatures. sometimes i’ll glance at the clock while at a friend’s house and it says 09:00 and i do a double-take because “how is it already going-to-bed time?” before i realize it meant 9PM local time, not 09:00 UTC (1AM local).
but it’s the things you don’t think about that make it difficult. set your phone to UTC and 24hr time. first thing you’ll notice is that every weather app blissfully ignores your settings, because they’re showing you weather for a specific place, and assume you care about the time local to that place. second thing you’ll notice is that half your IM apps are going to actually be using AM/PM still. they’ll even mix AM/PM with 24hr within the same app. you read “message received 11:20” and it could mean like 3 different things.
not to mention all the physical stuff: car clocks, oven/microwave clocks, … a lot of these in the US don’t even give an option for 24hr time, and “11:20 PM UTC” is just so cursed.
Then you get into political issues... why is it centered on the UK and not, say, India or China? Ridiculous, petty? Absolutely. And 100% how humanity works.
Umm… we are already using GMT/UTC, it’s just that we adjust it based on offsets because long ago before clocks we used sundials and high noon was just the time when the sun was at its highest.
The problem with adjusting the time locally is that it leads to all kinds of problems. 9am… where?
This has nothing to do with politics. No country is trying to change the 0:00 time.
I hope you understand now. Let me know if you don’t and I’ll elaborate.
That has it's own issues. Either you need some people to wake up in the middle of the night because it's now "morning", which would destroy people, or you need a way to figure out what part of their day night cycle people are in, which is what a time zone is.
The difficulty isn't because of the maps, it's because humans evolved to care about day-night cycles, being round, the earth has a continuous day night cycle, and it's only recently that we could suddenly talk to people in drastically different places. There's just no way to reconcile them.
………….. what? You know I don’t mean that working 09:00-17:00 would be everyone’s shift, right? If your normal time zone offset is -8, then your working hours are 17:00-01:00
The biggest time difference on land is between China and Afghanistan, 3 and a half hours, but there is no border crossing point there: https://en.wikipedia.org/wiki/Wakhjir_Pass
AFAIK The biggest time difference where you can cross is between Tajikistan and China, you would have to set your clock by 3 hours. There is one border crossing there Kulma Pass
Kiribati switched to the other side of the date line in 1994, so there are 3 different days at the same time on the Globe for an hour:
There's a thin bit of Afghanistan separating Pakistan and Tajikistan, and it reaches all the way to the Chinese border. That tiny bit of border (which is closed on the Chinese side and also a mountain pass thousands of metres high, but it is indeed a border) has a three and a half hour difference