# Center of Earth effects Time [duplicate]

I was watching this documentary about time:

It shows that gravity does effect time, and the higher the force the slower time will pass and slower you will age.

On earth we are also pulled by gravity and the closer we get to the center of the earth the stronger the force of gravity. Therefore if you were to swim really deep in ocean would that have the same effect on time as it would do for spaceship orbiting black hole?

I know that there is lava down there but in general would swimming around the center of earth have an effect in time?

• In simple terms: The time dilation depends on the mass/ gravitational field. But if you're moving to the center of earth the absolut value of the gravitational field strenght increases only for a few meters and then goes linear to $0$ in the center. – Alpha001 Apr 14 '17 at 12:33
• – Alpha001 Apr 14 '17 at 12:37
• Possible duplicate of Gravitational time dilation at the earth's center – sammy gerbil Apr 14 '17 at 13:37