Is the birth date based on the lunar or solar calendar?

The birth date is based on the lunar calendar. In the traditional Chinese calendar, the lunar calendar mainly refers to a calendar arranged according to the changes in the moon's lunar phase cycle, while the solar calendar is a calendar based on the movement cycle of the earth's revolution around the sun. The lunar calendar refers to the solar return year and sets leap months to make the average calendar year compatible with the return year. It combines the lunar calendar and the solar calendar to form a lunisolar calendar.

Related content about birth date and birth date

The year, month, day and hour of birth are represented by heavenly stems and earthly branches. Each column has two characters and eight characters, so it is called Bazi. . For example, a person's horoscope: Jiayin year, Xinwei month, Guiyou day, and Guihai hour. We can see that the birth horoscope is the time when a person was born. It is the birth time expressed by each column using the heavenly stems and earthly branches. The birth horoscope It is the year, month, day and hour of our birth. Now we commonly call it Bazi. In the Book of Changes prediction, the formal name is: Four Pillars and Bazi.