Holiday Day of Week Chart

Year 3631

Possible This year (3631) Never
Rosh Hashanah ראש השנה
Sep 15, -0130
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 24, -0130
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 29, -0130
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 5, -0130
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 6, -0130
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 7, -0130
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 8, -0130
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 26, -0129
S
M
T
W
T
F
Sh
Purim פורים
Feb 24, -0129
S
M
T
W
T
F
Sh
Pesach פסח
Mar 26, -0129
S
M
T
W
T
F
Sh
Shavuos שבועות
May 15, -0129
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 25, -0129
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 16, -0129
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 3631

Rosh Hashanah א׳ תשרי
Monday
Sep 15, -0130
Yom Kippur י׳ תשרי
Wednesday
Sep 24, -0130
Sukkos ט״ו תשרי
Monday
Sep 29, -0130
Hoshana Rabba כ״א תשרי
Sunday
Oct 5, -0130
Shemini Atzeres כ״ב תשרי
Monday
Oct 6, -0130
Simchas Torah כ״ג תשרי
Tuesday
Oct 7, -0130
Chanukah כ״ה כסלו
Monday
Dec 8, -0130
Tu BiShvat ט״ו שבט
Monday
Jan 26, -0129
Purim י״ד אדר
Tuesday
Feb 24, -0129
Pesach ט״ו ניסן
Thursday
Mar 26, -0129
Shavuos ו׳ סיון
Friday
May 15, -0129
17 Tammuz י״ז תמוז
Thursday
Jun 25, -0129
Tisha B'Av ט׳ אב
Thursday
Jul 16, -0129