Solar terms and the four pillars

Solar terms refer to the 24 solar terms and climate, which is a supplementary calendar made by China to guide farming in ancient times. Because the lunar calendar in China is a kind of "yin and yang calendar", which is based on the movement of the sun and the moon, it can't fully reflect the solar cycle. But China is an agricultural society, and agriculture needs a strict understanding of the movement of the sun, so farming is entirely based on the sun. Therefore, the "twenty-four solar terms" that reflect the solar cycle alone are added to the calendar as the standard for determining leap months. China's orthodox twenty-four solar terms are based on Henan.

According to the perpetual calendar, it's right, but you may not know that not only the six hexagrams and four pillars, but also the number of the Great Six Lords, Taoism and Taiyi, which are called the ancient three winds, should consider the solar terms, because each solar term will produce different five-element changes, and all forecasting methods using the five-element restraint theory should consider this, which is necessary.