Yin Cuo (Yin-Yang Mismatch)

A Yin Cuo day is one where the yin and yang forces are crossing or misaligned, resulting in an unharmonious energy field. In the traditional ganzhi (Stem-Branch) day-counting system, certain specific combinations are considered times when the movement of yin or yang energy is improper or displaced. Old beliefs held that marriage is a major event requiring the harmonious union of yin and yang, and thus must be conducted on a day with balanced energy. Holding a wedding on a Yin Cuo day was traditionally feared to lead to an imbalance of yin and yang between husband and wife, affecting marital harmony. Therefore, almanacs typically list these days as inauspicious for marriage.