Holiday Day of Week Chart

Year 9400

Possible This year (9400) Never
Rosh Hashanah ראש השנה
Sep 26, 5639
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 5, 5639
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 10, 5639
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 16, 5639
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 18, 5639
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 4, 5640
S
M
T
W
T
F
Sh
Purim פורים
Apr 3, 5640
S
M
T
W
T
F
Sh
Pesach פסח
May 3, 5640
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 22, 5640
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Aug 2, 5640
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 23, 5640
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 9400

Rosh Hashanah א׳ תשרי
Monday
Sep 26, 5639
Yom Kippur י׳ תשרי
Wednesday
Oct 5, 5639
Sukkos ט״ו תשרי
Monday
Oct 10, 5639
Hoshana Rabba כ״א תשרי
Sunday
Oct 16, 5639
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Sunday
Dec 18, 5639
Tu BiShvat ט״ו שבט
Saturday
Feb 4, 5640
Purim י״ד אדר
Tuesday
Apr 3, 5640
Pesach ט״ו ניסן
Thursday
May 3, 5640
Shavuos ו׳ סיון
Friday
Jun 22, 5640
17 Tammuz י״ז תמוז
Thursday
Aug 2, 5640
Tisha B'Av ט׳ אב
Thursday
Aug 23, 5640