In a Vox post, Matthew Yglesias manages to get excited over time zones, a remnant of the railroad era. He suggests one global time to avoid confusion from a welter of zones that often don’t make sense. An excerpt about what a world would like like post-time zones:

“If the whole world used a single GMT-based time, schedules would still vary. In general most people would sleep when it’s dark out and work when it’s light out. So at 23:00, most of London would be at home or in bed and most of Los Angeles would be at the office. But of course London’s bartenders would probably be at work while some shift workers in LA would be grabbing a nap. The difference from today is that if you were putting together a London-LA conference call at 21:00 there’d be only one possible interpretation of the proposal. A flight that leaves New York at 14:00 and lands in Paris at 20:00 is a six-hour flight, with no need to keep track of time zones. If your appointment is in El Paso at 11:30 you don’t need to remember that it’s in a different time zone than the rest of Texas.

This has always been the underlying logic of the railroad time scheme — clockface times should be abstracted away from considerations of solar position. But the initial introduction of railroad time was controversial. It struck people as unnatural. Today, however, we are very accustomed to the idea that time zone boundaries should be bent for the sake of convenience and practicality. That means we should move to the most convenient and most practical time system of all — a single Earth Time for all of humanity.”