Holiday Day of Week Chart

Year 9378

Possible This year (9378) Never
Rosh Hashanah ראש השנה
Sep 28, 5617
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 7, 5617
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 12, 5617
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
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 20, 5617
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 6, 5618
S
M
T
W
T
F
Sh
Purim פורים
Apr 6, 5618
S
M
T
W
T
F
Sh
Pesach פסח
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 25, 5618
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 26, 5618
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 9378

Rosh Hashanah א׳ תשרי
Thursday
Sep 28, 5617
Yom Kippur י׳ תשרי
Saturday
Oct 7, 5617
Sukkos ט״ו תשרי
Thursday
Oct 12, 5617
Hoshana Rabba כ״א תשרי
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Wednesday
Dec 20, 5617
Tu BiShvat ט״ו שבט
Tuesday
Feb 6, 5618
Purim י״ד אדר
Friday
Apr 6, 5618
Pesach ט״ו ניסן
Shavuos ו׳ סיון
Monday
Jun 25, 5618
17 Tammuz י״ז תמוז
Tisha B'Av ט׳ אב
Sunday
Aug 26, 5618