Gravitating Axion String Clouds and Negative charged Black Hole Voids seem the Electro Magnetic managers of the universe.
Negative charged Black Holes seem to be the Drivers of the managing clouds. and Casimir Pressure gravity.
Milky Way Time can only exist around massive oscillating baryon particles, like the Quartz particles in your whatch.
So, Our The universal time starts at B and Ends at A (big Crunch). The inflation starts by the explosion of the BB Nucleus. So: B is the Inflation start and and at A.
The period between A and B is without baryons. However, the Big Crunch Nucleus is still in equilibrium with the decreasing pressure of the former Universe vacuum. So without real universal ime. But must be included within the Multiverse cycle time.