Originally created for pilots in the 1950s, GMT (Greenwich Mean Time) watches keep track of up to three time zones at once, making this classic style the ultimate travel companion.✈🧳 #SunniestSideUp | Fossil

Why astronomers created Greenwich Mean Time 🕛️ For centuries, humans have relied on the sun for timekeeping. You can tell from its height above the horizon and its position roughly how many hours of daylight you have. And for most people, that's fine. But for astronomers, solar time is too variable, It's incredibly inaccurate and not exactly 24 hours. This is why astronomers at the Royal Observatory Greenwich created an average or mean day of exactly 24 hours. So Greenwich Mean Time is solar ti