Adar is the twelfth and final month in the Hebrew calendar, corresponding roughly to February-March in the Gregorian system. The name appears in post-exilic texts, reflecting Babylonian influence on Jewish calendrical terminology. In Ezra 6:15, the temple reconstruction was completed 'on the third day of the month Adar,' marking a momentous achievement in Israel's restoration. This month later became significant in Jewish tradition as the time of Purim.