Holiday Day of Week Chart

Year 1315

Possible This year (1315) Never
Rosh Hashanah ראש השנה
Oct 1, -2446
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 10, -2446
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 15, -2446
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 24, -2446
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 11, -2445
S
M
T
W
T
F
Sh
Purim פורים
Mar 12, -2445
S
M
T
W
T
F
Sh
Pesach פסח
Apr 11, -2445
S
M
T
W
T
F
Sh
Shavuos שבועות
May 31, -2445
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 11, -2445
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 1, -2445
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 1315

Rosh Hashanah א׳ תשרי
Saturday
Oct 1, -2446
Yom Kippur י׳ תשרי
Monday
Oct 10, -2446
Sukkos ט״ו תשרי
Saturday
Oct 15, -2446
Hoshana Rabba כ״א תשרי
Shemini Atzeres כ״ב תשרי
Simchas Torah כ״ג תשרי
Chanukah כ״ה כסלו
Saturday
Dec 24, -2446
Tu BiShvat ט״ו שבט
Saturday
Feb 11, -2445
Purim י״ד אדר
Sunday
Mar 12, -2445
Pesach ט״ו ניסן
Tuesday
Apr 11, -2445
Shavuos ו׳ סיון
Wednesday
May 31, -2445
17 Tammuz י״ז תמוז
Tuesday
Jul 11, -2445
Tisha B'Av ט׳ אב
Tuesday
Aug 1, -2445