A system of calendars used by Muslims which is based on lunar months.

Referring to historical contexts where the term was used for Muslim calendar systems.

मुस्लिम कैलेंडर प्रणाली

English Usage: Many historical events according to the Mohammedan calendar are now recognized in civil dates.

Hindi Usage: अब कई ऐतिहासिक घटनाएँ इस्लामी कैलेंडर के अनुसार नागरिक तारीखों में पहचानी जाती हैं।