What are birth dates and how to calculate them?

The horoscope of birth, referred to as the horoscope, refers to the date of a person's birth according to the stem and branch calendar; the year, month, day, and hour are divided into four pillars of stems and branches, with two characters for each pillar, totaling eight characters. Birthday horoscopes play an important role in Chinese folk beliefs. Ancient Chinese Taoists and astrologers used them to predict a person's destiny.

Inference method:

If the year stem is A or Ji, the stem and branch of the first month of that year is Bingyin; if the year stem is B or Geng, the stem and branch of the first month of that year is Wuyin; If the year stem is Bing or Xin, the stem and branch of the first month of that year is Geng Yin; if the year stem is Ding or Ren, the stem and branch of the first month of that year is Ren Yin; if the year stem is Wu or Gui, the stem and branch of the first month of that year is Jiayin.

Ziu Shi: 23 o'clock - 0:59 a.m.

Chou time: 1 o'clock - 2:59 a.m.

Yin time: 3 o'clock - 4:59 am

Mao hour: 5 o'clock - 6:59 am

Chen hour: 7 o'clock - 8:59 am

Si hour: 9 o'clock - 10:59 noon

Noon: 11 o'clock - 12:59 p.m.

Noon: 13:00 - 14:59 p.m.

Shenshi: 15:00 - 16:59pm

Youshi: 17:00 - 18:59pm

Xushi: 19:00 - 20:59pm

Hai hour: 21 o'clock - 22:59 p.m.

If the day stem is A or Ji, the stem and branch of that day are Jia Zi; if the day stem is B or Geng, the day stem is B or Geng. The stem and branch of Zi hour is Bingzi; if the day stem is Bing or Xin, the stem and branch of the day hour is Wuzi; if the day stem is Ding or Ren, the stem and branch of the day hour is Gengzi; if the day stem is Wu or Gui, the day stem is Wuzi. The stem and branch of Zishi are Renzi.

Extended information

The four pillars of birth date prediction:

The four pillars refer to the time of birth, that is, year, month, day, and hour. Humans use one word each for heavenly stems and earthly branches to express year, month, day and time, such as Jiazi year, Bingyin month, Xinchou day, Renyin time, etc. Each column has two characters, and four columns have eight characters, so fortune telling is also called "Bazi Bazi". According to the relationship between the heavenly stems and the earthly branches and the mutual restraint of the yin and yang and the five elements, we can speculate on people's faults, misfortunes, and fortunes. The use of four-pillar fortune-telling is also called finger-mutation fortune-telling.

The reason why fortune-telling methods such as four-pillar fortune-telling are also called astrology is because it evolved from ancient astrology. Ancient Chinese people believed that heaven and earth corresponded. The distribution of the nine states in the region corresponds to the astrology, and all living beings correspond to the astrology. The metal, wood, water, fire, and earth that make up the world also have Venus, Jupiter, Mercury, Mars, and Saturn corresponding in the sky. The sun represents yang and the moon represents yin, so the theory of yin and yang and the five elements are combined with astrology.

People's destiny is determined by the aura of the five elements of the astrology. Different people have different auras of the five elements of the astrology, so their destinies are different. The four-pillar prediction is based on the heavenly stems and earthly branches, yin and yang and the five elements, the four seasons and the five directions (the four seasons refer to the four seasons of spring, summer, autumn, and winter, and the five directions refer to the five directions of east, south, west, north, and middle), and the twelve palaces. It consists of several parts such as Xingxu Shensha (the same meaning as "Four Pillars Shensha") and the relationship between them. They are introduced by Xu Xianchao below.

The procedure after the four pillars and eight characters are arranged is to infer fortune, that is, to infer destiny based on the eight characters. The inferred contents include big luck, small luck, fleeting years, life palace, Yongshen, constellations and gods, etc.

The first step in ranking the Grand Luck is to find out the age at which the luck begins. Men born in the years of Jia, Bing, Wu, Geng, and Renyang in the heavenly stems, and women born in the years of Yin, Ding, Ji, Xin, and Guiyin in the heavenly stems, count from their birthday to the next festival ("Jie"). It refers to twelve of the twenty-four solar terms: Beginning of Spring, Jingzhe, Qingming, Beginning of Summer, Mangzhong, Minor Heat, Beginning of Autumn, White Dew, Cold Dew, Beginning of Winter, Heavy Snow, and Minor Cold. The rest are called "Qi"), and three days are considered as one year. On the contrary, if a woman born in a yang year and a man born in a yin year count backwards from their birthday to the previous period, three days will equal one year, and the remaining day will equal four months, and one hour will equal ten days.

The second step is to arrange the heavenly stems and earthly branches of the great luck. The stems and branches of the Universiade are calculated based on the stems and branches of the birth month.

If the year of birth is numbered in an upward direction, the stems and branches of the birth month will be arranged in sequence from the next stem and branch; if it is numbered inversely, the great luck stems and branches will be arranged in sequence from the stem and branch of the birth month. If the birth month is Xin Chou, the lucky stems and branches numbered in the ascending order are Renyin, Guimao, Jiachen, Yiji, Bingwu... The great luck stems and branches numbered in the reverse order are Gengzi, Jihai, Wuxu...

Each stem and branch of the Universiade is responsible for good and bad luck for five years. When looking at the heavenly stems, you can look at them together with the earthly branches, and when looking at the earthly branches, you can look at them separately.

Little luck, also called Xingnian, is the good or bad luck of the child before the big luck. The inference of small luck is basically the same as that of big luck. The difference is that the minor luck is based on the time stems and branches and is calculated according to the big luck calculation method. Small luck is used to make up for the shortcomings of big luck, but it is not as important as big luck.

The fleeting year is the year in which the fortune teller asks for fortune telling. Fortune tellers generally use the situation of the yearly branches and stems combined with the horoscope to predict whether the fortune will be bad or good for that year.

Yongshen refers to a five-element name in which the sun pillar representing oneself in the eight characters or the Universiade plays a supporting and remedial role. If the five elements of the Sun Stem are too weak, use the five elements that give birth to me or the same kind of self to support you; if they are too strong, use the five elements that restrain me or the self to restrain you. If the yongshen is effective in the fate, it will be a second life, and if there is no yongshen available, it will be a lower life. In astrology, identifying the yongshen is one of the keys to the accuracy of fortune telling. For example, if the person with Yi Wood on the sun is born at the wrong time and lacks the support of the same kind, if there is water in his horoscope or fortune, he can turn bad luck into good luck. If the Sun Stem Yi Wood is born in the Spring Moon, it will not only be strong but also support too much. If there is gold used to control the wood, that is, the official evil spirit will be used to restrain the strong and bring about balance.

Baidu Encyclopedia-Birthday and Eight Characters