IS THERE A UNIVERSAL SCALE OF TIME

The assumption that the same universal scale of time applies for diffe rent physical laws depends upon the hypothesis that there is a unique universal scale of time in the universe. Intrinsic to that hypothesis is the assumption that if extraneous factors that affect physical cloc ks and processes that run on different physical principles could be re moved, all clocks are synchronizable with one another. The consequence s of that hypothesis not being true are considered. It was found that clock asynchrony implies that: (1) a mass variation theory is probable ; (2) there is a need for multiple clocks; and (3) t in the equations of physics is referring to clocks rather than time such that the prope rties of time are reduced to its direction (as characterized by thermo dynamics and cosmology).