Time is the sense derived from the related motions of celestial bodies (planets, stars, etc.). All living things on Earth exist according to "time," or seasons; times/seasons are derived from the changing positions of Earth as it moves around the star we call "the sun."
Most vegetation & foliage grow within particular seasons, & recede in others (if this cycle is very long, it is undetectable by basic human observation). Most animals live differently in summer than in winter. Humans wake at approximately the same time year-round, performing most of the same duties at the same times daily without regard to the season (position of Earth as it moves around the sun). We make attempts to force our sleeping habits according to the demands of society, rather than to the dictates of nature. This does not promote physical health; it is life according to the motion of a complex machine.
All societies found within "history" on Earth depend for their existence on the planet; the planet could exist with any, all, or none of said societies. The originating circumstances of all societies on Earth grow from what we call the "time" (position of Earth around the sun). It is important for the builder of any society on Earth to have a concrete understanding of how to live according to the time, if that contributor to the construction of society is to promote growth & healthy living. If a person does not promote healthy living, that person is promoting unhealthy living (decay, which is the opposite of growth); the Dead have no dependence on time, & find it impossible to contribute fruitfully to life.
Even a society that can change the course of history can do mostly nothing to change the course of a planet, & may therefore achieve nothing that changes the world.
