Holiday Day of Week Chart

Year 5721

Possible This year (5721) Never
Rosh Hashanah ראש השנה
Sep 22, 1960
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 1, 1960
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 6, 1960
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 12, 1960
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 13, 1960
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 14, 1960
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 14, 1960
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 1, 1961
S
M
T
W
T
F
Sh
Purim פורים
Mar 2, 1961
S
M
T
W
T
F
Sh
Pesach פסח
Apr 1, 1961
S
M
T
W
T
F
Sh
Shavuos שבועות
May 21, 1961
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 1, 1961
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 22, 1961
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 5721

Rosh Hashanah א׳ תשרי
Thursday
Sep 22, 1960
Yom Kippur י׳ תשרי
Saturday
Oct 1, 1960
Sukkos ט״ו תשרי
Thursday
Oct 6, 1960
Hoshana Rabba כ״א תשרי
Wednesday
Oct 12, 1960
Shemini Atzeres כ״ב תשרי
Thursday
Oct 13, 1960
Simchas Torah כ״ג תשרי
Friday
Oct 14, 1960
Chanukah כ״ה כסלו
Wednesday
Dec 14, 1960
Tu BiShvat ט״ו שבט
Wednesday
Feb 1, 1961
Purim י״ד אדר
Thursday
Mar 2, 1961
Pesach ט״ו ניסן
Saturday
Apr 1, 1961
Shavuos ו׳ סיון
Sunday
May 21, 1961
17 Tammuz י״ז תמוז
Saturday
Jul 1, 1961
Tisha B'Av ט׳ אב
Saturday
Jul 22, 1961