Holiday Day of Week Chart

Year 3579

Possible This year (3579) Never
Rosh Hashanah ראש השנה
Sep 20, -0182
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 29, -0182
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 4, -0182
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 10, -0182
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 11, -0182
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 12, -0182
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 12, -0182
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 30, -0181
S
M
T
W
T
F
Sh
Purim פורים
Feb 28, -0181
S
M
T
W
T
F
Sh
Pesach פסח
Mar 30, -0181
S
M
T
W
T
F
Sh
Shavuos שבועות
May 19, -0181
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 29, -0181
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 20, -0181
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 3579

Rosh Hashanah א׳ תשרי
Thursday
Sep 20, -0182
Yom Kippur י׳ תשרי
Saturday
Sep 29, -0182
Sukkos ט״ו תשרי
Thursday
Oct 4, -0182
Hoshana Rabba כ״א תשרי
Wednesday
Oct 10, -0182
Shemini Atzeres כ״ב תשרי
Thursday
Oct 11, -0182
Simchas Torah כ״ג תשרי
Friday
Oct 12, -0182
Chanukah כ״ה כסלו
Wednesday
Dec 12, -0182
Tu BiShvat ט״ו שבט
Wednesday
Jan 30, -0181
Purim י״ד אדר
Thursday
Feb 28, -0181
Pesach ט״ו ניסן
Saturday
Mar 30, -0181
Shavuos ו׳ סיון
Sunday
May 19, -0181
17 Tammuz י״ז תמוז
Saturday
Jun 29, -0181
Tisha B'Av ט׳ אב
Saturday
Jul 20, -0181