Holiday Day of Week Chart

Year 4238

Possible This year (4238) Never
Rosh Hashanah ראש השנה
Sep 24, 0477
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 3, 0477
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 8, 0477
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 14, 0477
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 15, 0477
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 16, 0477
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 17, 0477
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 4, 0478
S
M
T
W
T
F
Sh
Purim פורים
Mar 5, 0478
S
M
T
W
T
F
Sh
Pesach פסח
Apr 4, 0478
S
M
T
W
T
F
Sh
Shavuos שבועות
May 24, 0478
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 4, 0478
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 25, 0478
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 4238

Rosh Hashanah א׳ תשרי
Saturday
Sep 24, 0477
Yom Kippur י׳ תשרי
Monday
Oct 3, 0477
Sukkos ט״ו תשרי
Saturday
Oct 8, 0477
Hoshana Rabba כ״א תשרי
Friday
Oct 14, 0477
Shemini Atzeres כ״ב תשרי
Saturday
Oct 15, 0477
Simchas Torah כ״ג תשרי
Sunday
Oct 16, 0477
Chanukah כ״ה כסלו
Saturday
Dec 17, 0477
Tu BiShvat ט״ו שבט
Saturday
Feb 4, 0478
Purim י״ד אדר
Sunday
Mar 5, 0478
Pesach ט״ו ניסן
Tuesday
Apr 4, 0478
Shavuos ו׳ סיון
Wednesday
May 24, 0478
17 Tammuz י״ז תמוז
Tuesday
Jul 4, 0478
Tisha B'Av ט׳ אב
Tuesday
Jul 25, 0478