Holiday Day of Week Chart

Year 6671

Possible This year (6671) Never
Rosh Hashanah ראש השנה
Sep 25, 2910
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 4, 2910
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 9, 2910
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 15, 2910
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 16, 2910
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 18, 2910
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 5, 2911
S
M
T
W
T
F
Sh
Purim פורים
Mar 6, 2911
S
M
T
W
T
F
Sh
Pesach פסח
Apr 5, 2911
S
M
T
W
T
F
Sh
Shavuos שבועות
May 25, 2911
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 5, 2911
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 26, 2911
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 6671

Rosh Hashanah א׳ תשרי
Thursday
Sep 25, 2910
Yom Kippur י׳ תשרי
Saturday
Oct 4, 2910
Sukkos ט״ו תשרי
Thursday
Oct 9, 2910
Hoshana Rabba כ״א תשרי
Wednesday
Oct 15, 2910
Shemini Atzeres כ״ב תשרי
Thursday
Oct 16, 2910
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Thursday
Dec 18, 2910
Tu BiShvat ט״ו שבט
Thursday
Feb 5, 2911
Purim י״ד אדר
Friday
Mar 6, 2911
Pesach ט״ו ניסן
Sunday
Apr 5, 2911
Shavuos ו׳ סיון
Monday
May 25, 2911
17 Tammuz י״ז תמוז
Sunday
Jul 5, 2911
Tisha B'Av ט׳ אב
Sunday
Jul 26, 2911