I still don't get it. Let's say you jump on an airplane with an atomic clock, and fly around the earth. According to the theory, your time will go slower. So th

I still don't get it. Let's say you jump on an airplane with an atomic clock, and fly around the earth. According to the theory, your time will go slower. So the clock on the plane will be behind the clock on earth. But what if you fly against the turning of the earth. That way the clock on the earth goes slower, and so when arriving back, the clock on earth is behind? Every time I look this up, I never seem to be able to wrap my head around that. EDIT: Found the answer to my question: https://en.wikipedia.org/wiki/Time_dilation#Reciprocity https://en.wikipedia.org/wiki/Time_dilation#Reciprocity . Basically when you accelerate and decelerate, your time gets influenced, and so the person experiencing the most acceleration will have the slower time.