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Hijri 1447 AH — Key Islamic dates & observances
📖 The 12 months of the Islamic calendar
About the Islamic Hijri Calendar
The Islamic Hijri calendar (التقويم الهجري) is a lunar calendar consisting of 12 months in a year of 354 or 355 days. It is used to determine the proper days of Islamic holidays and rituals, such as Ramadan, Eid al-Fitr, Eid al-Adha, and the Hajj pilgrimage. The calendar began with the year of the Hijra — the migration of Prophet Muhammad ﷺ from Mecca to Medina in 622 CE, which marks year 1 AH (Anno Hegirae).
Because each Hijri year is around 10–11 days shorter than the Gregorian year, Islamic events shift earlier each year relative to the Gregorian calendar. This means that over a 33-year cycle, a given Islamic date passes through all seasons of the year.
How many days are in the Hijri calendar?
The Hijri calendar has 12 lunar months, each beginning with the sighting of the new crescent moon. Months alternate between 29 and 30 days, giving a year of 354 days in a common year, or 355 days in a leap year. This is approximately 10–11 days shorter than the 365-day Gregorian year.
What does AH mean?
AH stands for "Anno Hegirae" (Latin) or "After Hijra." It marks the years since the migration (Hijra) of Prophet Muhammad ﷺ from Mecca to Medina in 622 CE. The year 2026 CE corresponds approximately to 1447–1448 AH.
Why do Islamic events fall on different Gregorian dates each year?
Because the Hijri year is about 10–11 days shorter than the Gregorian year, Islamic observances like Ramadan and Eid move approximately 10–11 days earlier each Gregorian year. Over a complete 33-year cycle, an Islamic date will have occurred in every season.
Is this calculator 100% accurate?
This calculator uses the tabular (arithmetic) Hijri calendar, which is the internationally standardised mathematical system. It is accurate for most purposes. Note that in practice, the start of each Islamic month is determined by the actual sighting of the new moon, which may vary by 1 day depending on your location and local religious authority.
What are the sacred months in Islam?
There are four sacred months (الأشهر الحرم) in Islam, as mentioned in the Quran (9:36): Dhul Qa'dah (11th), Dhul Hijjah (12th), Muharram (1st), and Rajab (7th). Warfare and conflict are forbidden during these months, and acts of worship carry greater reward.