Chong Day
A day marked 'Chong' (literally 'repeat') refers specifically to the Si (Snake) and Hai (Pig) days in the Chinese calendar. It signifies the recurrence of events, and traditionally it was considered inauspicious for funerals and weddings for fear of causing such events to repeat themselves.
The Chong Day is a type of auspicious or inauspicious day noted in old Chinese almanacs, specifically referring to the Si (Snake) and Hai (Pig) days. It carries the meaning of 'events recurring.' Traditionally, these days were often deemed unlucky in the Tong Shu (Chinese almanac), with particular taboos against holding funerals or wedding ceremonies. The ancient Chinese feared that conducting such one-time significant rituals on these days could lead to a repetition of events, such as another death occurring or an unhappy marriage, and thus would deliberately avoid them.