Holiday Day of Week Chart

Year 4709

Possible This year (4709) Never
Rosh Hashanah ראש השנה
Sep 7, 0948
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 16, 0948
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 21, 0948
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 27, 0948
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Sep 28, 0948
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Sep 29, 0948
S
M
T
W
T
F
Sh
Chanukah חנוכה
Nov 29, 0948
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 17, 0949
S
M
T
W
T
F
Sh
Purim פורים
Feb 15, 0949
S
M
T
W
T
F
Sh
Pesach פסח
Mar 17, 0949
S
M
T
W
T
F
Sh
Shavuos שבועות
May 6, 0949
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 16, 0949
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 7, 0949
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 4709

Rosh Hashanah א׳ תשרי
Thursday
Sep 7, 0948
Yom Kippur י׳ תשרי
Saturday
Sep 16, 0948
Sukkos ט״ו תשרי
Thursday
Sep 21, 0948
Hoshana Rabba כ״א תשרי
Wednesday
Sep 27, 0948
Shemini Atzeres כ״ב תשרי
Thursday
Sep 28, 0948
Simchas Torah כ״ג תשרי
Friday
Sep 29, 0948
Chanukah כ״ה כסלו
Wednesday
Nov 29, 0948
Tu BiShvat ט״ו שבט
Wednesday
Jan 17, 0949
Purim י״ד אדר
Thursday
Feb 15, 0949
Pesach ט״ו ניסן
Saturday
Mar 17, 0949
Shavuos ו׳ סיון
Sunday
May 6, 0949
17 Tammuz י״ז תמוז
Saturday
Jun 16, 0949
Tisha B'Av ט׳ אב
Saturday
Jul 7, 0949