# Is there any formula to calculate the effect gravity has on time

1. Jun 8, 2009

### d0wnl0w

just curious..
want to do some fiddling around with it

2. Jun 8, 2009

### sylas

Try this one:
$$T = \frac{T_0}{\sqrt{1-\frac{2GM}{Rc^2}}}$$​
G is the gravitational constant, M is a mass, c is speed of light, T is a time interval measured far away from the mass, and T0 is the time interval measured by a clock at distance R from the mass.

Source hyperphysics.

3. Jun 8, 2009

### d0wnl0w

Thank you i will..

Last edited: Jun 8, 2009