MONTHS OF THE PRINCIPAL CALENDARS
Gregorian1 Jewish Islamic
Name Days Name Days Name Days
January
begins 10 days after the
winter solstice
31 Tishri
in the year 5753 began
Sept.28, 1992
30 Muharram4
in A.H. 1413 began
July 2,1992
30
February
in leap years
28
29
Heshvan29 or 30 Safar 29
March 31 Kislev29 or 30 Rabi I30
April 30 Tebet 29 Rabi II 29
May 31 Shebat 30 Jumada I 30
June 30 Adar2 29 or 30 Jumada II29
July 31 Nisan3 30 Rajab 30
August 31 Iyar 29 Sha'ban 29
September 30 Sivan 30 Ramadan 30
October 31 Tammuz 29 Shawwal 29
November 30 Ab 30 Dhu'l-Qa'dah 30
December 31 Elul 29 Dhu'l-Hijja
in leap years
29
30

1The equinoxes occur about March 21 and September 23, the solstices about June 22 and December 22.
2In leap years an intercalary month of 30 days takes the place of Adar, and is sometimes called Adar I. Adar then becomes the 29-day Veadar or Adar Sheni (sometimes called Adar II), and retains the usual festivals and holidays of Adar.
3The first month of the ecclesiastical year; anciently called Abib.
4Retrogresses through the seasons; the Islamic year is lunar and each month begins at the approximate new moon; the year 1 A.H. began on Friday, July 16, A.D. 622.