Holiday Day of Week Chart

Year 4765

Possible This year (4765) Never
Rosh Hashanah ראש השנה
Sep 18, 1004
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 27, 1004
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 2, 1004
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 8, 1004
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 9, 1004
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 10, 1004
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 11, 1004
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 29, 1005
S
M
T
W
T
F
Sh
Purim פורים
Feb 27, 1005
S
M
T
W
T
F
Sh
Pesach פסח
Mar 29, 1005
S
M
T
W
T
F
Sh
Shavuos שבועות
May 18, 1005
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 28, 1005
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 19, 1005
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 4765

Rosh Hashanah א׳ תשרי
Monday
Sep 18, 1004
Yom Kippur י׳ תשרי
Wednesday
Sep 27, 1004
Sukkos ט״ו תשרי
Monday
Oct 2, 1004
Hoshana Rabba כ״א תשרי
Sunday
Oct 8, 1004
Shemini Atzeres כ״ב תשרי
Monday
Oct 9, 1004
Simchas Torah כ״ג תשרי
Tuesday
Oct 10, 1004
Chanukah כ״ה כסלו
Monday
Dec 11, 1004
Tu BiShvat ט״ו שבט
Monday
Jan 29, 1005
Purim י״ד אדר
Tuesday
Feb 27, 1005
Pesach ט״ו ניסן
Thursday
Mar 29, 1005
Shavuos ו׳ סיון
Friday
May 18, 1005
17 Tammuz י״ז תמוז
Thursday
Jun 28, 1005
Tisha B'Av ט׳ אב
Thursday
Jul 19, 1005