Holiday Day of Week Chart

Year 2820

Possible This year (2820) Never
Rosh Hashanah ראש השנה
Sep 12, -0941
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 21, -0941
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 26, -0941
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 2, -0941
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 3, -0941
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 4, -0941
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 5, -0941
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 23, -0940
S
M
T
W
T
F
Sh
Purim פורים
Mar 22, -0940
S
M
T
W
T
F
Sh
Pesach פסח
Apr 21, -0940
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 10, -0940
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 21, -0940
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 11, -0940
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 2820

Rosh Hashanah א׳ תשרי
Saturday
Sep 12, -0941
Yom Kippur י׳ תשרי
Monday
Sep 21, -0941
Sukkos ט״ו תשרי
Saturday
Sep 26, -0941
Hoshana Rabba כ״א תשרי
Friday
Oct 2, -0941
Shemini Atzeres כ״ב תשרי
Saturday
Oct 3, -0941
Simchas Torah כ״ג תשרי
Sunday
Oct 4, -0941
Chanukah כ״ה כסלו
Saturday
Dec 5, -0941
Tu BiShvat ט״ו שבט
Saturday
Jan 23, -0940
Purim י״ד אדר
Tuesday
Mar 22, -0940
Pesach ט״ו ניסן
Thursday
Apr 21, -0940
Shavuos ו׳ סיון
Friday
Jun 10, -0940
17 Tammuz י״ז תמוז
Thursday
Jul 21, -0940
Tisha B'Av ט׳ אב
Thursday
Aug 11, -0940