The Islamic, Muslim, or Hijri calendar (Arabic: التقويم الهجري ‎ at - taqwīm al - hijrī) is a lunar calendar consisting of 12 months in a year of 354 or 355 days. It is used (often alongside the Gregorian calendar) to date events in many Muslim countries. It is also used by Muslims to determine the proper days of Islamic holidays and rituals, such as the annual period of fasting and the proper time for the pilgrimage to Mecca.
islamic calendar how many days in a non leap year
354