Adar (month)

Adar (Hebrew: אֲדָר‎ Adar; from Akkadian adaru) is the sixth month of the civil year and the twelfth month of the ecclesiastical year on the Hebrew calendar, roughly corresponding to the month of March in the Gregorian calendar. It is a winter month of 29 days. The Month of Adar in the Holy Scriptures comprises in Esther 09, 21.

In leap years, it is preceded by a 30-day intercalary month named Adar Aleph (Hebrew: אדר א'‎, Aleph being the first letter of the Hebrew alphabet, also known as "Adar Rishon" (First Adar) or "Adar I") and it is then itself called Adar Bet (Hebrew: אדר ב'‎, Bet being the second letter of the Hebrew Alphabet, also known as "Adar Sheni" (Second Adar) or "Adar II"). Occasionally instead of Adar I and Adar II, "Adar" and "Ve'Adar" are used (Ve means 'and' thus: And Adar). Adar I and II occur during February–March on the Gregorian calendar.

Based on a line in the Mishnah declaring that Purim must be celebrated in Adar II in a leap year (Megillah 1:4), Adar I is considered the "extra" month. As a result, someone born in Adar during a non leap year would celebrate his birthday in Adar II during a leap year. However, someone born during either Adar in a leap year will celebrate his birthday during Adar in a non-leap year, except that someone born on 30 Adar I will celebrate his birthday on 1 Nisan in a non-leap year because Adar in a non-leap year has only 29 days.

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