That would be an example of a measurement of time. Since my argument is that time is an effect of such activity, like temperature, not a dimension, like space, therefore is emergent from this activity, there is no universal time, nor anything beyond this activity. Just as there is no temperature, without activity.

So each action is its own clock. Like lots of particles bouncing around and thus trading energy, so temperature tends towards uniformity, so too do measures of frequency/clocks tend to equalize.

Can you think of any measure of time that doesn’t involve a particular physical action?