Holiday Day of Week Chart

Year 3109

Possible This year (3109) Never
Rosh Hashanah ראש השנה
Sep 26, -0652
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 5, -0652
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 10, -0652
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 16, -0652
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 18, -0652
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 5, -0651
S
M
T
W
T
F
Sh
Purim פורים
Mar 6, -0651
S
M
T
W
T
F
Sh
Pesach פסח
Apr 5, -0651
S
M
T
W
T
F
Sh
Shavuos שבועות
May 25, -0651
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 5, -0651
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 26, -0651
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 3109

Rosh Hashanah א׳ תשרי
Thursday
Sep 26, -0652
Yom Kippur י׳ תשרי
Saturday
Oct 5, -0652
Sukkos ט״ו תשרי
Thursday
Oct 10, -0652
Hoshana Rabba כ״א תשרי
Wednesday
Oct 16, -0652
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Wednesday
Dec 18, -0652
Tu BiShvat ט״ו שבט
Wednesday
Feb 5, -0651
Purim י״ד אדר
Thursday
Mar 6, -0651
Pesach ט״ו ניסן
Saturday
Apr 5, -0651
Shavuos ו׳ סיון
Sunday
May 25, -0651
17 Tammuz י״ז תמוז
Saturday
Jul 5, -0651
Tisha B'Av ט׳ אב
Saturday
Jul 26, -0651