Holiday Day of Week Chart

Year 5565

Possible This year (5565) Never
Rosh Hashanah ראש השנה
Sep 6, 1804
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 15, 1804
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 20, 1804
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 26, 1804
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Sep 27, 1804
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Sep 28, 1804
S
M
T
W
T
F
Sh
Chanukah חנוכה
Nov 28, 1804
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 15, 1805
S
M
T
W
T
F
Sh
Purim פורים
Mar 15, 1805
S
M
T
W
T
F
Sh
Pesach פסח
Apr 14, 1805
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 3, 1805
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 14, 1805
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 4, 1805
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 5565

Rosh Hashanah א׳ תשרי
Thursday
Sep 6, 1804
Yom Kippur י׳ תשרי
Saturday
Sep 15, 1804
Sukkos ט״ו תשרי
Thursday
Sep 20, 1804
Hoshana Rabba כ״א תשרי
Wednesday
Sep 26, 1804
Shemini Atzeres כ״ב תשרי
Thursday
Sep 27, 1804
Simchas Torah כ״ג תשרי
Friday
Sep 28, 1804
Chanukah כ״ה כסלו
Wednesday
Nov 28, 1804
Tu BiShvat ט״ו שבט
Tuesday
Jan 15, 1805
Purim י״ד אדר
Friday
Mar 15, 1805
Pesach ט״ו ניסן
Sunday
Apr 14, 1805
Shavuos ו׳ סיון
Monday
Jun 3, 1805
17 Tammuz י״ז תמוז
Sunday
Jul 14, 1805
Tisha B'Av ט׳ אב
Sunday
Aug 4, 1805