Being happens as measured in the present.
Becoming happens as measured over time (and space).
“As measured” speaks to experiencing things being, or experiencing things becoming. The measure we take of things, our perception, is our experience of being/becoming. Time is found in the measure, in the mind that is minding (knowing perceiving measuring) things becoming present or being present.
Things exist in the present - they may be dynamic and newer things the very next moment, but then only those newer things exist, as only the present moment is the time when things exist.
The past is not a thing or a place or an existing time. The past refers to things and places that no longer exist.
So to perceive motion, to perceive becoming, we have to employ a tool to track and recall (re-present) changes and the motions we perceive.
Time enables us to track state A against state B.
But time is the mental tracking tool, not a thing in the world. That tool may avail itself in things that don’t have minds, but only minds can take up the tool and use it, so the invention of time is really the recognition (re-cognition) of present moments ordered now according to past-present-present to be. This can make time look as if time was separate from the things occurring in it, as if there are things moving, and separately, the time it take them to be moved.
Motion contains the tools for minds to make time.
So really, except for the mind, and except for the present (the now, the here), time has little to do with being.
The fulcrum is the notion of the present. It’s a special term meaning here; and it’s a temporal term meaning now. The present is related to being. Now is just one of the ways, the temporal way, to organize experiences of things presently being things.