Rabi ul Awwal is the third month of the Islamic calendar and it is the month which comes after Safar. Rabi ul Awwal 2022 starts from 26 September to 25 October 2022. The word "Rabi" means "spring" and Al-awwal means "the first" in Arabic language, so "Rabi' al-awwal" means "The first spring" in Arabic language. The name seems to have to do with the celebration events in the month as "spring" is the end to winter (symbol of sadness) and consequently the start of happiness.
Mawlid - the birthday of the Islamic prophet, Muhammad is on the twelfth of this month,
The Islamic calendar is a lunar calendar, and months begin when the first crescent of a new moon is sighted. Since the Islamic lunar calendar year is 11 to 12 days shorter than the tropical year