day of the ghost
Refers to a specific day in the traditional calendar, often associated with the compound 鬼宿日. Rare standalone use.
See also: 鬼宿日
The Ghost constellation is one of the 28 lunar mansions, corresponding to the Western constellation Cancer.
In the traditional calendar, the day of the ghost was considered a day to avoid weddings.
day of the ghost; extremely auspicious day (except for weddings)
From Chinese 鬼宿 (guǐxiù), literally 'ghost mansion'. The reading きしゅく is the Sino-Japanese on'yomi.