Holiday Day of Week Chart

Year 7800

Possible This year (7800) Never
Rosh Hashanah ראש השנה
Oct 3, 4039
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 12, 4039
S
M
T
W
T
F
Sh
Sukkos סוכות
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 25, 4039
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 11, 4040
S
M
T
W
T
F
Sh
Purim פורים
Mar 11, 4040
S
M
T
W
T
F
Sh
Pesach פסח
Apr 10, 4040
S
M
T
W
T
F
Sh
Shavuos שבועות
May 30, 4040
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 10, 4040
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 31, 4040
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 7800

Rosh Hashanah א׳ תשרי
Monday
Oct 3, 4039
Yom Kippur י׳ תשרי
Wednesday
Oct 12, 4039
Sukkos ט״ו תשרי
Hoshana Rabba כ״א תשרי
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Sunday
Dec 25, 4039
Tu BiShvat ט״ו שבט
Saturday
Feb 11, 4040
Purim י״ד אדר
Sunday
Mar 11, 4040
Pesach ט״ו ניסן
Tuesday
Apr 10, 4040
Shavuos ו׳ סיון
Wednesday
May 30, 4040
17 Tammuz י״ז תמוז
Tuesday
Jul 10, 4040
Tisha B'Av ט׳ אב
Tuesday
Jul 31, 4040