What is time?

Everybody experiences time, but nobody can define it.

Time is related to the being or the cause/result and sequence of the movement of the universe in our experience.

Time is only an experience of life instead of the reality of the universe.

Intelligent beings depend, often unconsciously, on time in working. Consciousness and thinking depend on the essence of time.

Prediction is time jump before existence, and memory recall is time replay of existence.

Time is the only "thing" we can experience and that we do not know how we sense.

How does a super AI experience time in its thinking? I do not think a mechanical or electronic timer is a right solution, as many of us have not thought about it seriously.

Quantum theory may be a better explanation, but how to do is another thing.