Holiday Day of Week Chart

Year 5668

Possible This year (5668) Never
Rosh Hashanah ראש השנה
Sep 9, 1907
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 18, 1907
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 23, 1907
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 29, 1907
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Sep 30, 1907
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 1, 1907
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 1, 1907
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 18, 1908
S
M
T
W
T
F
Sh
Purim פורים
Mar 17, 1908
S
M
T
W
T
F
Sh
Pesach פסח
Apr 16, 1908
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 5, 1908
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 16, 1908
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 6, 1908
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 5668

Rosh Hashanah א׳ תשרי
Monday
Sep 9, 1907
Yom Kippur י׳ תשרי
Wednesday
Sep 18, 1907
Sukkos ט״ו תשרי
Monday
Sep 23, 1907
Hoshana Rabba כ״א תשרי
Sunday
Sep 29, 1907
Shemini Atzeres כ״ב תשרי
Monday
Sep 30, 1907
Simchas Torah כ״ג תשרי
Tuesday
Oct 1, 1907
Chanukah כ״ה כסלו
Sunday
Dec 1, 1907
Tu BiShvat ט״ו שבט
Saturday
Jan 18, 1908
Purim י״ד אדר
Tuesday
Mar 17, 1908
Pesach ט״ו ניסן
Thursday
Apr 16, 1908
Shavuos ו׳ סיון
Friday
Jun 5, 1908
17 Tammuz י״ז תמוז
Thursday
Jul 16, 1908
Tisha B'Av ט׳ אב
Thursday
Aug 6, 1908