The fact that you give a preference to change something here which you give as an example for something that shouldn’t be changed because it would be problematic is deeply ironic to me.
Also, again, I don’t really see the problem with changing the date in the middle of the day. It’s virtually the same as changing it at 00:00 or 04:00, you change the date once every 24 hours. Right now you have a situation where one persons 3rd of the month could be another persons 2nd or 4th, depending on where on the globe they are. That’s not really ideal either, especially for that call scheduling example by the GP.
Don’t you think it makes sense for the date to change while ~everyone is asleep?
International light-speed communication is what we internet dwellers are used to but it’s not most people’s experience. Most people rarely talk to people from another continent.
Oh don’t get me wrong, I see how it makes sense. I’m just saying that 1) it is arbitrary nonetheless and 2) it doesn’t outweigh the benefits that could be gained by using a single global timezone. Incidence angle of solar radiation is hardly something most people need or even want to track beyond a certain degree (dawn, noon, dusk, midnight), and the times that would coincide with at your latitude and longitude can be easily learned.
I guess I disagree about the benefits of a single global timezone. We already have that for technology to use - the unix timestamp. All potential benefits of a unified timezone could be (and are) gained by having software convert times to whichever timezone you need.
Maybe I’m missing something. What do you think the benefits would be?