A more natural way to say it is that equality requires that the unit of length is the length of an arbitrary pendulum and the unit of time is the half-period of the same pendulum.
The pendulum is a device that relates pi to gravity.
The arbitrary length pendulum with a period of 2 seconds which is your unit of length, (or 1 Catholic meter) is much shorter on the moon.
In local Catholic meters gravity would be pi squared Catholic meters / second.
As it would on any planet.
The pendulum is a device that relates pi to gravity.