Pilots already do this. Everything in aviation is “ZULU” time. In computers, we call it UTC or +0000. It actually works really well because we cross time zones so easily.
I would totally be in favor of switching to a universal time zone. But inertia is hard to overcome. Most people don’t change time zones very often as they’re usually far from population centers and people know that when they take a trip, that’s when the time zone will change so for most it’s not a daily concern and getting used to a new time zone model would be annoying. When you tell people about the US state of Indiana, they really start to change their minds, that place is fucked up.
Hint: Reykjavik, Iceland is a major city that uses UTC always, no Daylight Savings Time there. I always keep my second time zone on my watch and phone set to that.
I’ve got a number of embedded systems that use a Java client which can’t work on a modern system. I run XP in a VM with an old version of Firefox and Java on it to get into those. Works great!
Up until a few years ago, I had a flight simulator running on Windows 95. It too, ran great and was certified for students to log flight time towards their certifications.