Is time also a substance

Time is not a substance, it is an objective form of material existence, a manifestation of the continuity and sequence of the movement and change of matter.

Time is divided into the absolute time of objective existence and the relative time of subjective sensation. Absolute time is a one-way axis that cannot be reversed or stagnant. The relative time is very arbitrary, it can be both positive flow, stop, and reverse flow.

It is precisely because of this that there is a sub-luminal clock slow effect, a light-speed clock stop effect, and a faster-than-light clock inverted effect.

If you move close to the speed of light, the light will catch up with you very slowly, and you will feel as if time has slowed down, but this is only the relative time of the outside world has slowed down, and absolute time has not slowed down.

If you move at the speed of light, you will always see the light of the moment, and it feels as if time has stopped, but this is only the relative time of the outside world has stopped, and absolute time still passes as usual.

If you move faster than the speed of light, you can catch up with the light that was emitted before, so that you can see what was before, and it feels as if time has gone backwards, which is only the relative time of the outside world, and there is no change in absolute time.

According to the principle of invariance of the speed of light, the light emitted from the aircraft is always the speed of light with respect to the observer, so that the relative time of the observer does not change.

In fact, absolute time is not necessary, it cannot be perceived, it cannot be calculated with it, only relative time is computationally meaningful.

Time. Produced by the movement of matter. When matter moves absolutely. There is no concept of time.

But it can't be. Matter is not absolutely static. So time objectively exists.

It can be said that time is a measure of material development.

It's like the length, width and height of matter. The same. It is the fourth dimension of matter.

Although I don't know how it is written in books, but I personally think that there is no time in the universe, but time is only embodied in matter, and human beings see time from the passage of life and the dissipation of matter, but does there exist time in the universe? Does the universe dissipate? No one knows.

No, time is only a synonym for human consciousness cognition, it does not belong to matter, like a parallel universe, and human beings only use this name to refer to and refer to certain things that do not exist but can indirectly express their form.

By the definition of substance, it is not.

From the perspective of astronomy and astrology, time is only the trajectory of the planet, it is just a process.