Albert Einstein's "relative time" was the time for us to depict that the observers might live in different time coordinates systems (e. g. in a flying plane).

The Lorentz transfer of time coordinates is the sum of two times, one related to time expansion and the other to the relativity of photon's flight time from the radiant to the receiver.

A new type of exponential curve model, coupled with rheological term for soft soils, is put forward based on the calculation formula of modified secondary compression under absolute time coordinates.