Holiday Day of Week Chart

Year 4237

Possible This year (4237) Never
Rosh Hashanah ראש השנה
Sep 6, 0476
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 15, 0476
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 20, 0476
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 26, 0476
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Sep 27, 0476
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Sep 28, 0476
S
M
T
W
T
F
Sh
Chanukah חנוכה
Nov 28, 0476
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 15, 0477
S
M
T
W
T
F
Sh
Purim פורים
Mar 15, 0477
S
M
T
W
T
F
Sh
Pesach פסח
Apr 14, 0477
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 3, 0477
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 14, 0477
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 4, 0477
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 4237

Rosh Hashanah א׳ תשרי
Monday
Sep 6, 0476
Yom Kippur י׳ תשרי
Wednesday
Sep 15, 0476
Sukkos ט״ו תשרי
Monday
Sep 20, 0476
Hoshana Rabba כ״א תשרי
Sunday
Sep 26, 0476
Shemini Atzeres כ״ב תשרי
Monday
Sep 27, 0476
Simchas Torah כ״ג תשרי
Tuesday
Sep 28, 0476
Chanukah כ״ה כסלו
Sunday
Nov 28, 0476
Tu BiShvat ט״ו שבט
Saturday
Jan 15, 0477
Purim י״ד אדר
Tuesday
Mar 15, 0477
Pesach ט״ו ניסן
Thursday
Apr 14, 0477
Shavuos ו׳ סיון
Friday
Jun 3, 0477
17 Tammuz י״ז תמוז
Thursday
Jul 14, 0477
Tisha B'Av ט׳ אב
Thursday
Aug 4, 0477