Lag time, or time, the time it takes something to travel betweeen point a and b, is not a “time dilation”. Although you can imagine it to be if you want to. But that still doesn’t make it so.
The sun exists in the exact same moment of time as the earth does. So does that satellite in orbit around the earth. The time it takes something to travel the distance between any of them doesn’t change the fact that they all exist in the same moment.
You are so completely wrong it’s amazing. Time is relative. This was proven almost 100 years ago too.
You have either never read much about the most accurate physical theory in existence. Or you did not understand it. Lag and dilation are two different concepts. The dilation is not just time related but also mass related. It has been measured to accuracies beyond all other physical theories combined. If you can find some info that disputes it I would be interested, it seems as though that is not your intent.