1. https://qntm.org/abolish https://qntm.org/abolish 2. Summarising why I agree with 1.): With UTC (or whatever other time zone you'd standardise on), you "kno

1. https://qntm.org/abolish https://qntm.org/abolish 2. Summarising why I agree with 1.): With UTC (or whatever other time zone you'd standardise on), you "know" what time it is everywhere (because it's the same everywhere), but if you actually want to know what that means for people elsewhere (i.e. are they likely working/sleeping/eating/...), you'd still have to look it up, just like you need to look up time zones today. At the same time though, because time loses its relation to the solar day, any mention of time you read or hear about in some article/piece of news/story/novel/... a) becomes completely meaningless without being tied to a concrete geographic location and b) if it's elsewhere, remains meaningless without looking up which bit of the solar day that time actually corresponds to at that location. 3. At the price of creating the International Date Line, the current system has the very useful property that the local calendar date changes at a time when most people are asleep or otherwise don't really care about it. With a single global time zone on the other hand, no matter what meridian you choose, 00:00 will happen right in the middle of the waking hours of a significant fraction of the planet. Having the calendar date change in the middle of the calendar is incredibly confusing and would necessitate using unwieldy double dates ("today is the 14th/15th") to make things unambiguous again. Public holidays and suchlike would have to be specified with starting and ending hours instead of being able to rely on the sensible default of midnight local time (and doing so would effectively reintroduce some sort of time zones through the back door, which calendar software would have to be able to handle, too – unless you want to force half of the world having their holidays starting and ending during typical waking hours) Right now this is only a common problem when having to coordinate things with people in significantly differing time zones, but under your proposal, those unlucky people that are not living near the meridian will have to deal with it constantly when dealing with their local time (which for most people will be much more frequently that having to schedule a meeting with someone on the opposite site of the planet).