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Bensemus t1_iy4liea wrote

Reply to comment by Quaytsar in ELI5: What does it mean by time slowing down at event horizon? by [deleted]

They don't. GPS's go faster due to being farther from Earth.

> The combination of these two relativitic effects means that the clocks on-board each satellite should tick faster than identical clocks on the ground by about 38 microseconds per day (45-7=38)!

https://www.astronomy.ohio-state.edu/pogge.1/Ast162/Unit5/gps.html#:~:text=As%20such%2C%20when%20viewed%20from,by%2045%20microseconds%20per%20day.

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