How many eight-character combinations can ten-day stems and twelve-day branches repeatedly form?

In the ancient calendar of China, A, B, C, D, E, Ji, G, Xin, Ren and Gui were called "ten heavenly stems", while Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai were called "twelve earthly branches". The ancients used heavenly stems and earthly branches to represent years, months, days and hours. Year, month and day are like four pillars supporting the building of time, so they are called four pillars. When the ancients formulated heavenly stems and earthly branches's theory, they should have the basis of observation and practice, not the concept made behind closed doors. For example, acupuncture in traditional Chinese medicine pays attention to the circulation of meridians, and the selection of points is regular at different days and hours, which conforms to heavenly stems and earthly branches's law. As for future generations who use heavenly stems and earthly branches to tell fortune and predict a person's fate, let's judge its authenticity by ourselves. Sixty jiazi

Ten heavenly stems and twelve earthly branches are combined circularly: Jiazi, Emei and Bingyin ... Until Guihai, * * * gets sixty combinations, which are called Sixty Jiazi, and so on, endlessly. Year, month and day are all 60 cycles. 60 is a wonderful number in the field of time. Not only did the ancients in China take 60 as the cycle, but now in the western timing method, one minute is 60 seconds and one hour is 60 minutes. Is it just a coincidence? Similarly, the current 24-hour day corresponds to the traditional 65,438+02 hours in China (one hour is a big hour and two hours is a big hour). China takes five days as an hour's cycle, so-called "five days waiting", and * * is 60 hours. The following are sixty kinds of stem and branch combinations (called sixties):

Jia Zi, Yi Ugly, Bing Yin, Ding Mao, Chen Wu, Keith, Geng Wu, Xin Wei, Ren Shen, Gui You,

JOE, Yihai, Bingzi, Ding Chou, Wuyin, Jimao, Chen Geng, Xinsi, Renwu, Guiwei,

Shen Jia, Yiyou, Xu Bing, Dinghai, Wuzi, Ugly, Gengyin, Xinmao, Renchen, Guisi,

Wu Jia, Yiwei, Shen Bing, Ding You, Wuxu, Jihai, Gengzi, Xin Chou, Ren Yin, Gui Mao,

Chen Jia, Yi Si, Wu Bing, Ding Wei, Wu Shen, You You, Geng Xu, Xinhai, Ren Zi, Ghost Chip,

The calendar years of Jiayin, Mao Yi, Chen Bing, Dingsi, Wuwu, Kyubi no Youko, Gengshen, Xinyou, Ren Xu and Guihai are divided by solar terms: calendar years.

The chronology takes sixty years as a cycle in turn. For example, 19 1 1 was the year of Xinhai, and the Revolution of 1911 broke out. After the handover in spring, the new year begins. For example, in beginning of spring in 2006, it was at 7: 27 am on February 4th, so 7: 26 was still the year of B-You and 7: 27 was the year of C-Xu. Yue Ji

Similarly, record the moon in turn with sixty jiazi. A new month begins with a solar term. For example, on March 6, 2006, 0 1: 29 was a shock, so before that, it was Geng, and then it was Xin Maoyue. Gregorian calendar year and Gregorian calendar month are divided according to solar terms. However, the intersection time of solar terms can only be determined after precise observation of astronomical phenomena, which reflects the running position of the solar system and the earth in the universe. Days start from a start date and take 60 days as a cycle: date.

A day and night is a day. Mark the days with sixty jiazi in turn. For example, today is Jiazi Day, and tomorrow is night feud, with a cycle of 60 days. A new day begins at midnight. Gich

Every day is divided into 12 equal parts, that is, 12 hours. 5 days ***60 hours, represented by 60 Jiazi. For example, the present hour is Bing Yin, and the next hour is Ding Mao. The establishment of time needs to be calculated by looking at the solar time. During the solar calendar and solar calendar, the movement and rotation of the earth around the sun were recorded. traditional Chinese stringed and woodwind instrument

Heavenly stems and earthly branches values of year, month, day and hour are called annual column, moon column, solar column and time column respectively. Eight characters

We often say that a person's horoscope is a four-column record of the time when he was born. It records some information about the relative positions of the earth, the sun and the universe when a person is born. Therefore, in the sense of the eight characters themselves, it is a time record. As for how to interpret the eight characters, that is, different people have different opinions. If you rely too much, it is superstition. Because it only records a small part of a person's information, the universe is so vast and life is so complicated, and a person's life mainly depends on his own efforts and struggles.