In tropical astrology, based on the division into twelve equal parts of 30 degrees of the ecliptic, someone is considered to be of the Sagittarius sign when they are born around November 23 to around December 21 of each year. These dates vary depending on the time zone of the place of birth and the date of the beginning of the astrological year of each year, given by the moment of the March equinox or Aries point.