FEAST DAYS Arabic ‘id عيد;
Dual ‘idan; plural a’yad. The two great festivals of the Muslims are, the ‘Idu ‘l-Fitr, and the ‘Idu ‘l-Azha. The other festivals which are celebrated as days of rejoicing are, the Shab-I-Barat, or the fifteenth day of Sha’ban; the Nau-Roz, or New Year’s day; and Akhir-I-Chahar Shamba, or the last Wednesday of the month of Safar; the Laylatu ‘r-Ragha’ib, or the first Friday in the month of the month Rajab; the Maulud, or the birthday of Muhammad.
An account of these feasts is given under their respective titles.

Based on Hughes, Dictionary of Islam