Islamic months are based on the lunar calendar; Islamic months begin with the sighting of the new moon, each month has a unique name in Arabic , and lasts about 29 days. The Islamic Hijri calendar which is an Islamic calendar having a lunar component of 12 months . Each month begins with the sighting of the new moon. From that all the dates of the significant religious events natural like Ramadan and Hajj are calculated. Here are the Islamic months ’ names in Arabic along with their transliterations: Here are the Islamic months ’ names in Arabic along with their transliterations: Twelve Islamic Months - This article explores the twelve Islamic months , their names in Arabic and English, and their significance in Islam .