Holiday Day of Week Chart

Year 5623

Possible This year (5623) Never
Rosh Hashanah ראש השנה
Sep 25, 1862
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 4, 1862
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 9, 1862
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 15, 1862
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 16, 1862
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 17, 1862
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 4, 1863
S
M
T
W
T
F
Sh
Purim פורים
Mar 5, 1863
S
M
T
W
T
F
Sh
Pesach פסח
Apr 4, 1863
S
M
T
W
T
F
Sh
Shavuos שבועות
May 24, 1863
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 4, 1863
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 25, 1863
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 5623

Rosh Hashanah א׳ תשרי
Thursday
Sep 25, 1862
Yom Kippur י׳ תשרי
Saturday
Oct 4, 1862
Sukkos ט״ו תשרי
Thursday
Oct 9, 1862
Hoshana Rabba כ״א תשרי
Wednesday
Oct 15, 1862
Shemini Atzeres כ״ב תשרי
Thursday
Oct 16, 1862
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Wednesday
Dec 17, 1862
Tu BiShvat ט״ו שבט
Wednesday
Feb 4, 1863
Purim י״ד אדר
Thursday
Mar 5, 1863
Pesach ט״ו ניסן
Saturday
Apr 4, 1863
Shavuos ו׳ סיון
Sunday
May 24, 1863
17 Tammuz י״ז תמוז
Saturday
Jul 4, 1863
Tisha B'Av ט׳ אב
Saturday
Jul 25, 1863