Holiday Day of Week Chart

Year 8580

Possible This year (8580) Never
Rosh Hashanah ראש השנה
Sep 24, 4819
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 3, 4819
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 8, 4819
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 14, 4819
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 15, 4819
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 16, 4819
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 16, 4819
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 3, 4820
S
M
T
W
T
F
Sh
Purim פורים
Apr 2, 4820
S
M
T
W
T
F
Sh
Pesach פסח
May 2, 4820
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 21, 4820
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Aug 1, 4820
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 22, 4820
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 8580

Rosh Hashanah א׳ תשרי
Tuesday
Sep 24, 4819
Yom Kippur י׳ תשרי
Thursday
Oct 3, 4819
Sukkos ט״ו תשרי
Tuesday
Oct 8, 4819
Hoshana Rabba כ״א תשרי
Monday
Oct 14, 4819
Shemini Atzeres כ״ב תשרי
Tuesday
Oct 15, 4819
Simchas Torah כ״ג תשרי
Wednesday
Oct 16, 4819
Chanukah כ״ה כסלו
Monday
Dec 16, 4819
Tu BiShvat ט״ו שבט
Monday
Feb 3, 4820
Purim י״ד אדר
Thursday
Apr 2, 4820
Pesach ט״ו ניסן
Saturday
May 2, 4820
Shavuos ו׳ סיון
Sunday
Jun 21, 4820
17 Tammuz י״ז תמוז
Saturday
Aug 1, 4820
Tisha B'Av ט׳ אב
Saturday
Aug 22, 4820