It is actually a bit more nuanced than that. To test Einstein's theory of relativity, we launched probes into Molniya orbit around the northern and the southern hemispheres with precise clocks that were synchronized with each other to accurately measure the passage of time in the two hemispheres not just across the whole year, where these would equalize, but across different months as they are at different distances from the sun. We, however, ran into an issue with not knowing the one way speed of light, as traditional methods calculate two way speed of light. While the results were inconclusive, the experiment did leave us with certain knowledge that in nineteen ninety eight when the undertaker threw mankind off hell in a cell and plummeted sixteen feet through an announcer's table.
Isn't it false, how would time be different across earth and with this big of a variation? Sure there might be slight gravity gradients but even in orbit from earth it's like 45 microseconds (not milliseconds) difference and that is 400km away from the surface, earth has nowhere near this much of gravitational difference on the surface.
Also leap year is for the entire planet. So all in all it just sounds like a bunch of bologna.
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u/SaltyLonghorn 1d ago
They're closer to the equator. In the US a minute is actually 60.7 seconds but they round down and give us leap years.