The Hebrew Calendar

 

1.     The Hebrew Calendar is based on a lunar month so the year is about 11 days shorter than the Christian (solar) year and there are no constant Christian dates of Jewish holidays

2.     There is a cycle of 19 Hebrew years and additional month is added to some of the years, so this cycle is equal to 19 solar years. Therefore there is no growing delay between the Hebrew and the Christian calendars as for example between the Christian and the Islamic.  

3.     The Jewish New Year (JNY) is celebrated during September – October. The Year 2000 is 5760 by Hebrew calendar. The Year 5760 started at Jewish New Year of 1999 and lasted till Jewish New Year of 2000.

4.     To calculate the Christian Year (CE) according to Hebrew Year (HE) :

a.      CE = HE – 3760   for dates from 1/1 till the JNY

b.     CE = HE – 3761   for dates from JNY till 31/12

5.     The Hanukkah holiday is celebrated at December therefore you should use the 4.b. formula for Hanukkah coins

6.     Conversion table  between the Hebrew years appearing on Israeli coins and the corresponding Christian years according to the 4.a. formula :

 

1948 -  תש"ח	1967 - תשכ"ז	1986 - התשמ"ו
1949 - תש"ט	1968 - תשכ"ח	1987 - התשמ"ז
1950 - תש"י	1969 - תשכ"ט	1988 - התשמ"ח
1951 - תשי"א	1970 - תש"ל	1989 - התשמ"ט
1952 - תשי"ב	1971 - תשל"א	1990 - התש"ן
1953 - תשי"ג	1972 - תשל"ב	1991 - התשנ"א
1954 - תשי"ד	1973 - תשל"ג	1992 - התשנ"ב
1955 - תשט"ו	1974 - תשל"ד	1993 - התשנ"ג
1956 - תשט"ז	1975 - תשל"ה	1994 - התשנ"ד
1957 - תשי"ז	1976 - תשל"ו	1995 - התשנ"ה
1958 - תשי"ח	1977 - תשל"ז	1996 - התשנ"ו
1959 - תשי"ט	1978 - תשל"ח	1997 - התשנ"ז
1960 - תש"ך	1979 - תשל"ט	1998 - התשנ"ח
1961 - תשכ"א	1980 - תש"ם	1999 - התשנ"ט
1962 - תשכ"ב	1981 - תשמ"א	2000 - התש"ס
1963 - תשכ"ג	1982 - התשמ"ב	2001 - התשס"א
1964 - תשכ"ד	1983 - התשמ"ג	2002 - תשס"ב
1965 - תשכ"ה	1984 - התשמ"ד	2003 - התשס"ג
1966 - תשכ"ו	1985 - התשמ"ה

 

 You can find more info about the Hebrew and other calendars at Dan Ramer’s site.