Eight characters play an important role in Han folk beliefs. The stems and branches of a year form a column of years, the stems and branches of a month form a column of months, the stems and branches of a day form a column of days, and the stems and branches of a year form a column of times. A total of four pillars, four stems and four branches, a total of eight words, so it is also called four pillars and eight characters. The prediction model of four-column increase in transportation and flow year is called split level; The four-column sun-moon method belongs to the four-column complete prediction technology and method.
To learn eight characters, you should be familiar with the dry calendar.
China has used heavenly stems and earthly branches to accurately record years, months, days and hours since ancient times. It consists of eight branches (eight words in total).
The combination of year, month, day and hour is called "column", which forms "year column", "moon column", "sun column" and "time column", so the eight characters are also called "four columns" or "four columns and eight characters".
Every year, beginning of spring is the beginning of the New Year, and beginning of spring shocks silver moon (like the first month of the lunar calendar), with the "Festival" moment as the beginning of the month and the "Qi" last moment as the end of the month; Then calculate the heavenly stems and earthly branches of month, day and hour in turn.
Because the horoscope only reflects the relative angular position of the earth and the sun, the conversion of the horoscope formula of time needs to refer to many factors, including average solar time, sidereal time, average solar time difference, time zone and daylight saving time.