Relativity

[snopes]

Comment: A co-worker and I was talking and he said that they have proven
that because of the gravitational pull, time slows down when you get
closer to the speed of light. He told me that when the empire state
building was built, they put two clocks in there, and after years they
checked them out and the date on one of the clocks was faster than the
other. I told him this sounded weird....and I dont know how that would
have to do with the speed of light.