Eckard,
Actually what I said is tomorrow becomes yesterday because the earth turns. This is not any general reference to future or past, but a specific, common occurrence and the effect creating it.
Time is an effect, not foundational, so possibly a way to understand it is as it functions.
As I relate it to the concept of temperature, consider how you would perceive temperature. You know it is energy being transmitted as the rate at which lots of molecules and even their atomic basis are vibrating and so shedding energy. In a pot of water they are also moving about.
Now in this perception, did the idea of change and thus time necessarily occur? I would say not necessarily. There is just the impression of activity in a particular frame.
As change does occur, how would you measure it? There could be lots of methods. If you could attach a meter to each molecule and record every vibration, that would be one way. You could record the rate steam leaves the pot, or the slowly declining weight of this body of water, as it boils away.
Now all that is really occurring is changes of state. Energy and water radiated or evaporated and gone elsewhere. Stuff moved about. None of this occurred in some extra dimension. It all happened in the present. One set of relations evolved into another.
So this state of the present moves from one configuration to another. We think of it as the present moving from past to future, but it was actually these changes occurring in the present, so it is they which go from being potential, to actual, to residual.
Neither past or future physically exist, because they are not present. It is only our sense of memory and continuity which makes this complicated, since we are like just one of those molecules of water, bouncing from one encounter to the next, in what we experience as a single sequence of events and our memory is that record of encounters we experienced. So we have this sense of moving from distant past events to recent past events and think of it as then moving to future events, but past is residual and future is potential, so it doesn't make sense to think of it as moving from residual to potential, but then we have forgotten all the past possibilities that didn't happen and only remember what did actually occur and so those past events now seem more real than they are, given the physical material moves to other events and there is only the dust and smoke of memory, as these events move ever further into the past, driven by that continuous activity of what is present.
Hope this helps some.
Regards,
John M