A057350 Days in months in the Hebrew calendar starting from Nisan 5760 (Spring 2000 CE).

30, 29, 30, 29, 30, 29, 30, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 29, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 29, 29, 30, 30, 29

Offset

0,1

Comments

The months are Nisan, Iyyar, Sivan, Tammuz, Av, Elul, Tishri, Heshvan, Kislev, Teveth, Shevat, Adar. A leap month of 30 days, added between Shevat and Adar, is called Adar I, where the final month is then called Adar II. Heshvan and Kislev (the 8th and 9th months) may each have 29 or 30 days, depending on the calendrical rules.

36.22% of all years are "regular"; 25.51% are "deficient", with 29 days in both Heshvan and Kislev; 38.27% are "complete", with 30 days in both months. Note that Hebrew year 5760 is a 13-month leap year. - Robert B Fowler, Mar 08 2022

See A350458 for other comments, references, links, formulas, programs.

References

N. Dershowitz and E. M. Reingold, Calendrical Calculations, Cambridge University Press, 1997.

Links

Table of n, a(n) for n=0..74.

Wikipedia, Hebrew calendar Four gates, Types of Hebrew calendar years and their frequencies.

Example

A regular year has the pattern 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29.

Crossrefs

Cf. A057349 (Hebrew leap years).

Cf. A350458 (Chronological JDN of Tishri 1 in Hebrew calendar year (AM) n).

Sequence in context: A327846 A056998 A057348 * A244948 A282130 A125564

Adjacent sequences: A057347 A057348 A057349 * A057351 A057352 A057353

Keyword

nonn,easy

Author

Mitch Harris

Status

approved