The inverse of time is the period of a periodic function. A cycle is a completion of one period hence a cycle is a quantum of motion. But how do we compare one cycle to a different cycle without having to use the geometry of a circle with different radii? If the radii are equal then the cycles are the same. If the radii are not equal? The smaller radius can be used to quantify the larger cycle of the two cycles. So when time is zero, we are dealing here with a cycle that takes infinite time to complete. The concept of frequency in the physics of waves motion is also time inverse more specifically multiple inverse of time.