Holiday Day of Week Chart

Year 1591

Possible This year (1591) Never
Rosh Hashanah ראש השנה
Sep 10, -2170
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 19, -2170
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 24, -2170
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 30, -2170
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 1, -2170
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 2, -2170
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 2, -2170
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 19, -2169
S
M
T
W
T
F
Sh
Purim פורים
Mar 19, -2169
S
M
T
W
T
F
Sh
Pesach פסח
Apr 18, -2169
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 7, -2169
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 18, -2169
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 8, -2169
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 1591

Rosh Hashanah א׳ תשרי
Monday
Sep 10, -2170
Yom Kippur י׳ תשרי
Wednesday
Sep 19, -2170
Sukkos ט״ו תשרי
Monday
Sep 24, -2170
Hoshana Rabba כ״א תשרי
Sunday
Sep 30, -2170
Shemini Atzeres כ״ב תשרי
Monday
Oct 1, -2170
Simchas Torah כ״ג תשרי
Tuesday
Oct 2, -2170
Chanukah כ״ה כסלו
Sunday
Dec 2, -2170
Tu BiShvat ט״ו שבט
Saturday
Jan 19, -2169
Purim י״ד אדר
Tuesday
Mar 19, -2169
Pesach ט״ו ניסן
Thursday
Apr 18, -2169
Shavuos ו׳ סיון
Friday
Jun 7, -2169
17 Tammuz י״ז תמוז
Thursday
Jul 18, -2169
Tisha B'Av ט׳ אב
Thursday
Aug 8, -2169