Convert Islamic and Gregorian Dates
A simple guide to the Hijri calendar, why Islamic dates move, and how to use this converter.
What is the Hijri calendar?
The Hijri calendar is the Islamic lunar calendar. It has twelve months, and each month begins with the sighting of the new crescent moon, so a month lasts 29 or 30 days.
Years are counted from the Hijra, the Prophet's migration from Makkah to Madinah, and are written with AH, which stands for Anno Hegirae.
Why the dates move
A Hijri year is about ten or eleven days shorter than a Gregorian year. Because of this, Islamic dates such as Ramadan and Eid fall about ten or eleven days earlier in the Gregorian calendar each year.
The start of a month also depends on the moon sighting, so the date can differ by a day between countries and communities.
The twelve Islamic months
- Muharram, Safar, Rabi' al-Awwal and Rabi' al-Thani.
- Jumada al-Ula, Jumada al-Thani, Rajab and Sha'ban.
- Ramadan, the month of fasting, and Shawwal, which begins with Eid al-Fitr.
- Dhul Qa'dah and Dhul Hijjah, the month of Hajj and Eid al-Adha.
Features of this converter
- Converts Gregorian to Hijri, and Hijri to Gregorian.
- Shows today's Gregorian and Hijri date.
- Month names in English and Arabic, with the weekday.
- A month view with the Gregorian date under every Hijri day.
- A one-day adjustment either way to match your local moon sighting.
- Copy the result in one tap.