The eight-character master came in and asked the question of converting the Yin and Yang calendars into eight characters.

At present, there is no method and book value to convert except perpetual calendar. Although solar calendar days can be converted from formulas to lunar calendars. But the sun column on the lunar calendar day is to be found in the perpetual calendar. It is impossible to work out four pillars and eight characters without a perpetual calendar. If there is such a person, he won't have to judge with others.