Every phenomenon, including man, has a beginning and an end. "Beginning" is manifested by the emergence - "birth" or "beginning of changes" of a human phenomenon, "end" - by destruction - "death" or "end of changes". Different changes in different phenomena are manifested and felt in each person in different ways and are associated with the "length" or "duration" of the changes and the need to measure them. For measurement it is necessary to choose a "standard of changes" or what is called "time". If there were no "different" changes, then there would be no need for the emergence of the concept of "time" and it would not exist. Time is an abstract or mathematical concept that exists in our representation, or consciousness, and therefore we consider it to be absolute truth, or subjective value. Maybe there is no time?