Which is fourth month of the Islamic Calendar?

1. Rabi-ul-Awwal
2. Rabi-us-Sani
3. Rajab
4. Jamadi-us-Sani

The Islamic calendar is a lunar calendar consisting of 12 months. The fourth month is Rabi-us-Sani, also known as Rabi al-Thani. It translates to “the second spring” in Arabic.