day of the ghost; extremely auspicious day (except for weddings)
A traditional lunar calendar day considered highly auspicious for most activities, but weddings are avoided. The term is primarily encountered in historical or cultural contexts.
See also: 暦注
The day of the ghost is considered very auspicious for everything except weddings.
The term derives from Chinese calendar traditions, where 鬼宿 (ghost mansion) refers to one of the 28 lunar mansions. The exact historical derivation is uncertain, but the day is traditionally associated with good fortune.