Holiday Day of Week Chart

Year 1998

Possible This year (1998) Never
Rosh Hashanah ראש השנה
Sep 10, -1763
S
M
T
W
T
F
Sh
Yom Kippur יום כיפור
Sep 19, -1763
S
M
T
W
T
F
Sh
Sukkos סוכות
Sep 24, -1763
S
M
T
W
T
F
Sh
Hoshana Rabba הושענא רבה
Sep 30, -1763
S
M
T
W
T
F
Sh
Shemini Atzeres שמיני עצרת
Oct 1, -1763
S
M
T
W
T
F
Sh
Simchas Torah שמחת תורה
Oct 2, -1763
S
M
T
W
T
F
Sh
Chanukah חנוכה
Dec 2, -1763
S
M
T
W
T
F
Sh
Tu BiShvat ט״ו בשבט
Jan 19, -1762
S
M
T
W
T
F
Sh
Purim פורים
Mar 19, -1762
S
M
T
W
T
F
Sh
Pesach פסח
Apr 18, -1762
S
M
T
W
T
F
Sh
Shavuos שבועות
Jun 7, -1762
S
M
T
W
T
F
Sh
17 Tammuz י״ז בתמוז
Jul 18, -1762
S
M
T
W
T
F
Sh
Tisha B'Av תשעה באב
Aug 8, -1762
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 1998

Rosh Hashanah א׳ תשרי
Saturday
Sep 10, -1763
Yom Kippur י׳ תשרי
Monday
Sep 19, -1763
Sukkos ט״ו תשרי
Saturday
Sep 24, -1763
Hoshana Rabba כ״א תשרי
Friday
Sep 30, -1763
Shemini Atzeres כ״ב תשרי
Saturday
Oct 1, -1763
Simchas Torah כ״ג תשרי
Sunday
Oct 2, -1763
Chanukah כ״ה כסלו
Friday
Dec 2, -1763
Tu BiShvat ט״ו שבט
Thursday
Jan 19, -1762
Purim י״ד אדר
Sunday
Mar 19, -1762
Pesach ט״ו ניסן
Tuesday
Apr 18, -1762
Shavuos ו׳ סיון
Wednesday
Jun 7, -1762
17 Tammuz י״ז תמוז
Tuesday
Jul 18, -1762
Tisha B'Av ט׳ אב
Tuesday
Aug 8, -1762