Hijri Calendar
What Is the Hijri Calendar?
The Hijri calendar is a lunar calendar used in Islam that counts years from the Hijra migration in 622 CE. It has 12 months based on the moon cycle.
How lunar months work
Each Hijri month begins with the sighting of the new moon. Because lunar months are about 29.5 days, a Hijri year is about 11 days shorter than the Gregorian year.
Common Hijri month names
Some well-known Hijri months are Muharram, Ramadan, and Dhul-Hijjah. These months are important for religious holidays, fasts, and pilgrimage planning.
Why dates shift each year
Because the Hijri calendar is lunar, the same Hijri date moves earlier each Gregorian year. This is why Ramadan and Eid shift by about 10 to 11 days annually.
Convert Hijri dates with confidence
Use Converter to turn Hijri dates into Gregorian dates, and read how Hijri and Gregorian calendars differ for full clarity.