Time Dilation by Latitude

Time Dilation by Latitude refers to Albert Einstein's prediction that time would tick slower at the equator than at the poles.

From The Fascinating Life and Theory of Albert Einstein:

  “ In Einstein's original paper on the Special Theory of Relativity, "On the Electrodynamics of Moving Bodies", he mentioned a thought experiment using two identical clocks. One clock was placed on the equator and the other at one pole of the Earth. The clock on the equator had a faster speed then that at the pole due to the rotation of the earth. He claimed that the clock on the equator would run slower than the one at the pole. ”

Precision clocks were not yet advanced enough to measure the effect at the time, but since the invention and and advancement of atomic clocks there were efforts to use new technologies related to atomic clocks to measure and demonstrate this effect.

University of Maryland

https://umdgrb.umd.edu/~goodman/review/ThemeGroup2_Exp.ppt

In 2005 the University of Maryland found that there was no difference in clock time with Atomic Clocks: