This moment a brush goes into paint.
Oh wait,
The paint was mixed the moment before.
Where is the time in the moment?
An event?

What about the steady vibration of cesium-133 atoms?
Well actually 9.19 billion times the period of a photon from the electron transition of caesium-133 (Wikipedia).
How much trouble to define a moment.
Indefinable. or perhaps .
Does not-time exist all the time?

A mark on the canvas. More and more.
This moment the canvas is different.
A record of moments.
Indefinable and yet experienced.