五七日(いつなのか)

いつなのか
noun
35th-day Buddhist memorial service
religion
1. 35th-day memorial service; fifth seven-day rite after death
In Japanese Buddhist funeral practice, a memorial rite held on the 35th day after a death, the fifth of the seven weekly services observed during the 49-day mourning period.
We held the 35th-day memorial service.
地域(ちいき)によっては五七日(いつなのか)を忌(い)み明(あ)けとする。
In some regions, the 35th-day service marks the end of mourning.
When families cannot wait until the 49th day, the 35th-day service is sometimes treated as the mourning-ending rite instead.

五七日(いつなのか) (literally "five sevens") is the fifth of the weekly Buddhist memorial services held after a death, falling on the 35th day.

Related words

In some regions and Buddhist sects, 五七日(いつなのか) rather than 四十九日(しじゅうくにち) is treated as the formal end of mourning, especially when scheduling makes a 49th-day gathering difficult.