a complete rotation of the earth on earth 's axis / itself takes 1 / one day
earth_day is not 24_hours_long. earth's_year has not 365_days earth_year is 365_days_long. rotation is not turning. earth's_year has 365_days earth_year is not 365_days_long. rotation is turning. rotation is motion. earth_day is 24_hours_long. orbital_rotation is rotation.