Less writing and more reading, Appell. Your mistakes are so basic a free encyclopedia article on physics surpasses your knowledge. Yet it exactly confirms the instruction I tried to give you.
http://en.wikipedia.org/wiki/Time_dilation#Time_dilation:_special_vs._general_theories_of_relativity
Time dilation: special vs. general theories of relativity
In Albert Einstein’s theory of relativity, time dilation in these two circumstances can be summarized:
In special relativity (or, hypothetically far from all gravitational mass), clocks that are moving with respect to an inertial system of observation are measured to be running more slowly. This effect is described precisely by the Lorentz transformation.
In general relativity, clocks at a position with lower gravitational potential – such as in closer proximity to a planet – are found to be running more slowly. The articles on gravitational time dilation and gravitational redshift give a more detailed discussion.
Special and general relativistic effects can combine (as seen with ISS astronauts).
