What are the Twelve months of the Islamic Lunar Calendar?

The Islamic calendar or Muslim calendar or Hijri calendar (AH)

Lunar calendar consisting of 12 months in a year  

The total number of days in Islamic Calendar is 354 or 355 days

It is used by Muslims everywhere to determine the proper days on which 

• To observe the annual fast in the month of Ramadan
• To attend Hajj pilgrimage,  
• To celebrate other Islamic holidays and festivals.

The first year was the Islamic year beginning in AD 622 during which the prophet Muhammad (saw) migrated from Mecca to Medina, known as the Hijra

The current Islamic year is 1435 AH

The twelve months of Islamic calendar are:

1. Muharram
2. Safar
3. Rabi' al-awwal
4. Rabi' al-akhir
5. Jumada al-awwal
6. Jumada al-akhir
7. Rajab
8. Sha'aban
9. Ramadan
10. Shawwal
11. Dhu al-Qi'dah
12. Dhu al-Hijjah