How long does it take to learn eight characters?

Learn to tell fortune, simple. The problem is that there are many ways to tell fortune. To master a fortune-telling method, it is a very simple thing to understand the principle of fortune-telling method first, and you don't need any profound knowledge. Those who spread the Book of Changes and gossip fortune-telling may not have much knowledge, otherwise they will all become masters of Chinese studies.

Take the four-column and eight-character fortune-telling of Zhouyi as an example. First of all, understand what four pillars and eight characters are. The four pillars are people's birthdays, years, months and days. Eight characters, that is, the year corresponding to the yellow calendar, eight characters. For example, born on April 15, 2005, 2 1: 35, corresponding to the branches of the zodiac: Yiyou, Chen Geng, Keith and Yihai.

Sixty zodiac signs, sixty divided by twelve equals five, and each zodiac sign corresponds to five zodiac signs, which are matched with five elements, so there are water life, fire of life, golden life, wood life and earth life, and then fortune-telling is based on the relationship between the five elements.

It's that simple. However, there is a problem here. Zhouyi is divination, and four-column and eight-character fortune-telling are two fortune-telling methods. Four-pillar eight-character fortune-telling is preceded by the word "Zhouyi", which is called pulling the banner to make tiger skin and fooling people.

The point is that four-column horoscope fortune-telling simply doesn't understand the difference between astronomy and calendar.

Astronomically, the solar year is 365 and a quarter days, not an integer.

Calendar years are integers. The Gregorian calendar is a solar calendar, with 365 days in a normal year and 366 days in a leap year. Lunar calendar is a combination of solar calendar and monthly calendar. The period of the first month of the lunar calendar is about twenty-nine and a half days, not an integer. The months in the Gregorian calendar are integers, with 30 days in the big month and 29 days in the small month. Average year 12 months and 354 days, leap year 13 months and 383 days are all integers. In the seventh leap of nineteen years, a solar year averages 365 1/4 days, which is not an integer.

Astronomical year is a non-integer and calendar year is an integer. Destiny is not equal to heaven. Therefore, I can't figure out such simple basic common sense as four pillars and eight characters fortune telling. Can fortune telling be accurate?