Interesting publication.

The first thing you say, with respect to the time zone, evidently shows how the hours, and the human quantification of time is only an instrument, it is a construction, the human can say that it is 6 or 12, however, the time will not change for that. Nor can we say that in China they are in the future with respect to the United States simply by the time zones, so yes, these are simply a construct, which are very useful but are not something in and of themselves.

I believe that time is a reference, it is relative to each person.

If you mean that the perception of time is subjective, then I am of your opinion, but we should not confuse the "perception of time", which is one thing, with "time" which is something else.

If we have different perceptions of time, this does not mean that time is relative or subjective, or anything like that, it means that we "perceive" the same thing, the "time", which is objective, differently, and this does not It is because of time itself, but because we are subjects, and all our interaction with the world is subjective.

Therefore, the perception of time is indeed subjective, because there must be a subject that perceives it, and the subject is subjective by nature, but in turn, there must be something that is perceived, and that something, which is time, it's objective and therefore it exists.

If time did not exist, then it could not be perceived, it did not exist before and after, and therefore, there was no movement.

Interesting publication again, greetings!