To verify the uniqueness of my equation of time π (x + y) (t – xy) = k, consider x – y = 144, which represents the tree of knowledge in the Garden of Eden in the Kabbalistic tradition. This happens for t = 3156 before Christ, 42 years before the beginning of the 12th cycle Maya. To reach the year 2028, in which x – y = 0 and x = y = 42, it takes 72 cycles, each of which reduces by 2 units the difference between x and y. The number of years between these two moments is 5184, which corresponds to the square of 72 or to the square of 216 divided by 9. Which means that the average of each cycle in this period is 72 years, which is the number of years that the sun employs to move to a degree around the ecliptic, although the cycles have a duration of descending, which corresponds to the difference between x and y.