Holiday Day of Week Chart

Year 8731

Possible This year (8731) Never
Rosh Hashanah ראש השנה
Oct 6, 4970
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 15, 4970
S
M
T
W
T
F
Sh
Sukkos סוכות
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 29, 4970
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 16, 4971
S
M
T
W
T
F
Sh
Purim פורים
Mar 17, 4971
S
M
T
W
T
F
Sh
Pesach פסח
Apr 16, 4971
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 5, 4971
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 16, 4971
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 6, 4971
S
M
T
W
T
F
Sh

How does this work?

The Jewish calendar follows fixed arithmetic rules that determine which day of the week each holiday can fall on. There are exactly 14 possible year types (keviyot / קביעות), each determining the day of the week for every holiday in that year.

Lo ADU — לא אד״ו

Rosh Hashanah never falls on Sunday, Wednesday, or Friday. This prevents Yom Kippur from being adjacent to Shabbos and Hoshana Rabba from falling on Shabbos.

Lo BaDU — לא בד״ו

Pesach never falls on Monday, Wednesday, or Friday. This is a mathematical consequence of Lo ADU combined with the structure of the year.

AT BASH — א״ת ב״ש

A mnemonic pairing holidays that always fall on the same day of the week: Tisha B'Av = 1st day Pesach, Shavuos = 2nd day Pesach, Rosh Hashanah = 3rd day Pesach, Simchas Torah = 4th day Pesach, Yom Kippur = 5th day Pesach, Purim (previous) = 6th day Pesach.

Holiday Details for 8731

Rosh Hashanah א׳ תשרי
Saturday
Oct 6, 4970
Yom Kippur י׳ תשרי
Monday
Oct 15, 4970
Sukkos ט״ו תשרי
Hoshana Rabba כ״א תשרי
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Saturday
Dec 29, 4970
Tu BiShvat ט״ו שבט
Saturday
Feb 16, 4971
Purim י״ד אדר
Sunday
Mar 17, 4971
Pesach ט״ו ניסן
Tuesday
Apr 16, 4971
Shavuos ו׳ סיון
Wednesday
Jun 5, 4971
17 Tammuz י״ז תמוז
Tuesday
Jul 16, 4971
Tisha B'Av ט׳ אב
Tuesday
Aug 6, 4971