Holiday Day of Week Chart

Year 4787

Possible This year (4787) Never
Rosh Hashanah ראש השנה
Sep 15, 1026
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 24, 1026
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 29, 1026
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 5, 1026
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 6, 1026
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 7, 1026
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 7, 1026
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 25, 1027
S
M
T
W
T
F
Sh
Purim פורים
Feb 23, 1027
S
M
T
W
T
F
Sh
Pesach פסח
Mar 25, 1027
S
M
T
W
T
F
Sh
Shavuos שבועות
May 14, 1027
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jun 24, 1027
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 15, 1027
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 4787

Rosh Hashanah א׳ תשרי
Thursday
Sep 15, 1026
Yom Kippur י׳ תשרי
Saturday
Sep 24, 1026
Sukkos ט״ו תשרי
Thursday
Sep 29, 1026
Hoshana Rabba כ״א תשרי
Wednesday
Oct 5, 1026
Shemini Atzeres כ״ב תשרי
Thursday
Oct 6, 1026
Simchas Torah כ״ג תשרי
Friday
Oct 7, 1026
Chanukah כ״ה כסלו
Wednesday
Dec 7, 1026
Tu BiShvat ט״ו שבט
Wednesday
Jan 25, 1027
Purim י״ד אדר
Thursday
Feb 23, 1027
Pesach ט״ו ניסן
Saturday
Mar 25, 1027
Shavuos ו׳ סיון
Sunday
May 14, 1027
17 Tammuz י״ז תמוז
Saturday
Jun 24, 1027
Tisha B'Av ט׳ אב
Saturday
Jul 15, 1027