Holiday Day of Week Chart

Year 8450

Possible This year (8450) Never
Rosh Hashanah ראש השנה
Sep 21, 4689
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 30, 4689
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 5, 4689
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 11, 4689
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 12, 4689
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 13, 4689
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 13, 4689
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 30, 4690
S
M
T
W
T
F
Sh
Purim פורים
Mar 30, 4690
S
M
T
W
T
F
Sh
Pesach פסח
Apr 29, 4690
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 18, 4690
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 29, 4690
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 19, 4690
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 8450

Rosh Hashanah א׳ תשרי
Saturday
Sep 21, 4689
Yom Kippur י׳ תשרי
Monday
Sep 30, 4689
Sukkos ט״ו תשרי
Saturday
Oct 5, 4689
Hoshana Rabba כ״א תשרי
Friday
Oct 11, 4689
Shemini Atzeres כ״ב תשרי
Saturday
Oct 12, 4689
Simchas Torah כ״ג תשרי
Sunday
Oct 13, 4689
Chanukah כ״ה כסלו
Friday
Dec 13, 4689
Tu BiShvat ט״ו שבט
Thursday
Jan 30, 4690
Purim י״ד אדר
Sunday
Mar 30, 4690
Pesach ט״ו ניסן
Tuesday
Apr 29, 4690
Shavuos ו׳ סיון
Wednesday
Jun 18, 4690
17 Tammuz י״ז תמוז
Tuesday
Jul 29, 4690
Tisha B'Av ט׳ אב
Tuesday
Aug 19, 4690