What is eight-character numerology?

The date of birth is a traditional record of China's personal date and time of birth. It expresses the year, month, day and time of a person's birth through heavenly stems and earthly branches's two Chinese characters, one column and four columns. This record is eight words, so it is called "birthday".

The process that numerologists convert the date of birth (calculated according to the lunar calendar) into the date of birth is called carving eight characters. Then it will be interpreted by the numerology history. Birthdays are usually used for divination and marriage, and they are still popular among the people.

Birthdays are used in marriage to predict whether two people will be happy in their future marriage. Generally speaking, the birthdays of both men and women are born together, which means that married life is happy, and mutual restraint means that they are unhappy. Some people think that the outcome of birthdays is very important. If their birthdays are equal, they may give up their marriage with one party.