Sunset day - Sunset day

Japanese: 衰日 - すいにち

〘Noun〙 One of the bad days in Onmyodo. There are the days of the year of death that are fixed according to the zodiac sign of the year of birth (for example, those born in the year of the Rat or Horse will be on the day of the Ox or Tiger), and the days of the year of death that change every year according to age (for example, the year of the Dragon or Dog when 27 years old). It is also called a virtue day because the character for death is avoided. *Kyu-reki - Sadanobu Kokyo no Mikoto, Tenkei 6 (943), March 20th "Avoid the day of death on the outer record, and make a declaration of oblivion for the repeated and repeated Shinto ceremonies and performers, and the sho-no-kyou." *Genpei Seisuiki (before the 14th century), 2 "The place of the funeral is marked (omitted) The date and time are chosen to be the day of the Empress's death (sui-nichi) , and the direction is chosen from the oblivion of the court nobles."

Sui-jitsu [declining sun]

〘Noun〙 ⇒Suinichi (declining day)

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙陰陽道でいう悪日の一つ。その人の生年の十二支によって一定している生年衰日（たとえば、子・午生まれの人は丑・寅の日）、年齢によって毎年変わる行年衰日（たとえば、二七歳の年は辰・戌の日）とがある。衰の字を忌んで徳日ともいう。※九暦‐貞信公教命・天慶六年（943）三月二〇日「外記避御衰日・重・復・神事・奏者忌申之上卿之」※源平盛衰記（１４Ｃ前）二「御葬の地を点ず〈略〉日時は母后の御衰日(スイニチ)を選び、方角は公家の御方忌を用ひる」