Re: Why not 13 months? (Was La Systeme Metrique)

Rick Goldstein (
12 Jul 1995 22:47:11 GMT

>>>>> "KQ" == Kevin D Quitt <> writes:
In article <> (Kevin D. Quitt) writes:

KQ> 13 is the number of months in the Jewish calendar, except
KQ> every now and then there's a leap month.

Nope. There are twelve months in a normal year in the Jewish
calendar: Nissan, Iyar, Sivan, Tammuz, Av, Elul, Tishri, Heshvan,
Kislev, Teveth, Shevat, Adar. In a leap year, a second Adar is added
(in other words, Adar is replaced by Adar I and Adar II), so there are
thirteen months in a leap year. There are something like 6 leap years
every 19 years.


H.F.(Rick) Goldstein, JILA, University of Colorado