Holiday Day of Week Chart

Year 2680

Possible This year (2680) Never
Rosh Hashanah ראש השנה
Oct 1, -1081
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 10, -1081
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 15, -1081
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 23, -1081
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 10, -1080
S
M
T
W
T
F
Sh
Purim פורים
Mar 10, -1080
S
M
T
W
T
F
Sh
Pesach פסח
Apr 9, -1080
S
M
T
W
T
F
Sh
Shavuos שבועות
May 29, -1080
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 9, -1080
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 30, -1080
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 2680

Rosh Hashanah א׳ תשרי
Thursday
Oct 1, -1081
Yom Kippur י׳ תשרי
Saturday
Oct 10, -1081
Sukkos ט״ו תשרי
Thursday
Oct 15, -1081
Hoshana Rabba כ״א תשרי
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Wednesday
Dec 23, -1081
Tu BiShvat ט״ו שבט
Wednesday
Feb 10, -1080
Purim י״ד אדר
Thursday
Mar 10, -1080
Pesach ט״ו ניסן
Saturday
Apr 9, -1080
Shavuos ו׳ סיון
Sunday
May 29, -1080
17 Tammuz י״ז תמוז
Saturday
Jul 9, -1080
Tisha B'Av ט׳ אב
Saturday
Jul 30, -1080