Holiday Day of Week Chart

Year 1604

Possible This year (1604) Never
Rosh Hashanah ראש השנה
Sep 16, -2157
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 25, -2157
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 30, -2157
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 6, -2157
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 7, -2157
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 8, -2157
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 8, -2157
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 26, -2156
S
M
T
W
T
F
Sh
Purim פורים
Mar 25, -2156
S
M
T
W
T
F
Sh
Pesach פסח
Apr 24, -2156
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 13, -2156
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 24, -2156
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 14, -2156
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 1604

Rosh Hashanah א׳ תשרי
Tuesday
Sep 16, -2157
Yom Kippur י׳ תשרי
Thursday
Sep 25, -2157
Sukkos ט״ו תשרי
Tuesday
Sep 30, -2157
Hoshana Rabba כ״א תשרי
Monday
Oct 6, -2157
Shemini Atzeres כ״ב תשרי
Tuesday
Oct 7, -2157
Simchas Torah כ״ג תשרי
Wednesday
Oct 8, -2157
Chanukah כ״ה כסלו
Monday
Dec 8, -2157
Tu BiShvat ט״ו שבט
Monday
Jan 26, -2156
Purim י״ד אדר
Thursday
Mar 25, -2156
Pesach ט״ו ניסן
Saturday
Apr 24, -2156
Shavuos ו׳ סיון
Sunday
Jun 13, -2156
17 Tammuz י״ז תמוז
Saturday
Jul 24, -2156
Tisha B'Av ט׳ אב
Saturday
Aug 14, -2156