In general relativity, time dilation occurs not only in the presence of gravity but also in accelerated frames of reference. This means that time dilation can occur both in gravitational fields and in inertial frames experiencing acceleration.
When you are falling toward the Earth or in orbit around it, you are in a gravitational field. In this scenario, time dilation occurs due to the gravitational potential. The closer you are to a massive object like the Earth, the stronger the gravitational field, and the more time dilation you will experience relative to an observer in a weaker gravitational field or at a higher altitude.
If you are in free fall, such as in an orbiting spacecraft, the effects of time dilation remain constant as long as you are in a stable orbit. This is because the gravitational force experienced by you and the spacecraft cancel out, resulting in an inertial frame of reference. In this case, the time dilation remains constant as you fall or orbit.
However, if there are additional factors causing acceleration or changes in velocity, the time dilation effects can change. For example, if you were to thrust your spacecraft to increase your velocity or change your orbit, the acceleration would introduce additional time dilation effects.
In summary, time dilation due to gravity is influenced by the strength of the gravitational field, and time dilation due to acceleration depends on the magnitude and nature of the acceleration. In an inertial frame, such as a stable orbit, the time dilation effects remain constant unless there are changes in acceleration or velocity.