Holiday Day of Week Chart

Year 4850

Possible This year (4850) Never
Rosh Hashanah ראש השנה
Sep 8, 1089
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 17, 1089
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 22, 1089
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 28, 1089
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Sep 29, 1089
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Sep 30, 1089
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 1, 1089
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 19, 1090
S
M
T
W
T
F
Sh
Purim פורים
Feb 17, 1090
S
M
T
W
T
F
Sh
Pesach פסח
Mar 19, 1090
S
M
T
W
T
F
Sh
Shavuos שבועות
May 8, 1090
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 18, 1090
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 9, 1090
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 4850

Rosh Hashanah א׳ תשרי
Saturday
Sep 8, 1089
Yom Kippur י׳ תשרי
Monday
Sep 17, 1089
Sukkos ט״ו תשרי
Saturday
Sep 22, 1089
Hoshana Rabba כ״א תשרי
Friday
Sep 28, 1089
Shemini Atzeres כ״ב תשרי
Saturday
Sep 29, 1089
Simchas Torah כ״ג תשרי
Sunday
Sep 30, 1089
Chanukah כ״ה כסלו
Saturday
Dec 1, 1089
Tu BiShvat ט״ו שבט
Saturday
Jan 19, 1090
Purim י״ד אדר
Sunday
Feb 17, 1090
Pesach ט״ו ניסן
Tuesday
Mar 19, 1090
Shavuos ו׳ סיון
Wednesday
May 8, 1090
17 Tammuz י״ז תמוז
Tuesday
Jun 18, 1090
Tisha B'Av ט׳ אב
Tuesday
Jul 9, 1090