In ancient times, the birth horoscopes that people called were transformed into four groups of heavenly stems and earthly branches based on the three elements of a person's birth date, birth time and birth area. The horoscopes are also called four pillars. One pillar corresponds to a group of stems and branches.
For example: A woman was born in Linli County, Changde City, Hunan Province at 14:1 on August 23, 1986. Use the online ranking tool to find out that her birth date is: Bingyin Bingshenji Haixinwei.