Shabbat counts as one of the seven days of shiva. However, public mourning practices are suspended on Shabbat — the mourner wears shoes, positions the bed upright, and exchanges greetings. Private restrictions continue.
Question 2
If a person buries a relative one hour before Rosh Hashanah, how many days of mourning remain after Yom Kippur?
Burying even one hour before Rosh Hashanah cancels the shiva entirely. After Yom Kippur, the mourner counts 23 remaining days (since the festivals counted as the shiva, leaving 23 of the thirty days).
Question 3
If a person buries a relative during Chol HaMoed, when does shiva begin?
Burial during Chol HaMoed delays the onset of mourning entirely. No mourning is observed during the festival. After the festival, a full seven days of shiva begin and the thirty days are counted from the day of burial.
Question 4
If burial occurs on the second day of Shavuot, does the mourner observe mourning on that day?
The second day of Yom Tov is a rabbinic institution. When it conflicts with the Torah-level obligation of first-day mourning, the Torah obligation takes precedence, and the mourner observes shiva.
Question 5
Burying seven days before Yom Tov has what effect on sheloshim?
Burying seven or more days before Yom Tov and completing the shiva allows the festival to nullify the sheloshim obligation entirely. The mourner is permitted to cut hair and launder on erev Yom Tov itself, based on the principle that part of the day is like the whole day.