Holiday Day of Week Chart

Year 1816

Possible This year (1816) Never
Rosh Hashanah ראש השנה
Sep 12, -1945
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 21, -1945
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 26, -1945
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 2, -1945
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 3, -1945
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 4, -1945
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 5, -1945
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 23, -1944
S
M
T
W
T
F
Sh
Purim פורים
Mar 22, -1944
S
M
T
W
T
F
Sh
Pesach פסח
Apr 21, -1944
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 10, -1944
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 21, -1944
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 11, -1944
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 1816

Rosh Hashanah א׳ תשרי
Thursday
Sep 12, -1945
Yom Kippur י׳ תשרי
Saturday
Sep 21, -1945
Sukkos ט״ו תשרי
Thursday
Sep 26, -1945
Hoshana Rabba כ״א תשרי
Wednesday
Oct 2, -1945
Shemini Atzeres כ״ב תשרי
Thursday
Oct 3, -1945
Simchas Torah כ״ג תשרי
Friday
Oct 4, -1945
Chanukah כ״ה כסלו
Thursday
Dec 5, -1945
Tu BiShvat ט״ו שבט
Thursday
Jan 23, -1944
Purim י״ד אדר
Sunday
Mar 22, -1944
Pesach ט״ו ניסן
Tuesday
Apr 21, -1944
Shavuos ו׳ סיון
Wednesday
Jun 10, -1944
17 Tammuz י״ז תמוז
Tuesday
Jul 21, -1944
Tisha B'Av ט׳ אב
Tuesday
Aug 11, -1944