Holiday Day of Week Chart

Year 1777

Possible This year (1777) Never
Rosh Hashanah ראש השנה
Sep 22, -1984
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Oct 1, -1984
S
M
T
W
T
F
Sh
Sukkos סוכות
Oct 6, -1984
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Oct 12, -1984
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 13, -1984
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 14, -1984
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 15, -1984
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Feb 2, -1983
S
M
T
W
T
F
Sh
Purim פורים
Mar 3, -1983
S
M
T
W
T
F
Sh
Pesach פסח
Apr 2, -1983
S
M
T
W
T
F
Sh
Shavuos שבועות
May 22, -1983
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 2, -1983
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Jul 23, -1983
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 1777

Rosh Hashanah א׳ תשרי
Monday
Sep 22, -1984
Yom Kippur י׳ תשרי
Wednesday
Oct 1, -1984
Sukkos ט״ו תשרי
Monday
Oct 6, -1984
Hoshana Rabba כ״א תשרי
Sunday
Oct 12, -1984
Shemini Atzeres כ״ב תשרי
Monday
Oct 13, -1984
Simchas Torah כ״ג תשרי
Tuesday
Oct 14, -1984
Chanukah כ״ה כסלו
Monday
Dec 15, -1984
Tu BiShvat ט״ו שבט
Monday
Feb 2, -1983
Purim י״ד אדר
Tuesday
Mar 3, -1983
Pesach ט״ו ניסן
Thursday
Apr 2, -1983
Shavuos ו׳ סיון
Friday
May 22, -1983
17 Tammuz י״ז תמוז
Thursday
Jul 2, -1983
Tisha B'Av ט׳ אב
Thursday
Jul 23, -1983