Hijri Date Converter

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Convert any date between the Gregorian calendar and the Hijri (Islamic) calendar — both directions, with full Hijri month names, based on the Umm al-Qura system.

Day

Month

Year

Hijri date

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Enter a date above.

Based on the tabular Islamic calendar which closely follows Saudi Arabia's Umm al-Qura system. Because Islamic months begin with the crescent moon sighting, converted dates may differ by ±1 day from officially announced dates in your country.

What is the Hijri calendar?

The Hijri (Islamic) calendar is a lunar calendar of 12 months and about 354 days per year, beginning from the Hijrah of Prophet Muhammad ﷺ in 622 CE. It sets the dates of Ramadan, Eid al-Fitr, Eid al-Adha and Hajj, and is the official calendar of Saudi Arabia.

The 12 Hijri months

Muharram, Safar, Rabi' al-awwal, Rabi' al-thani, Jumada al-awwal, Jumada al-thani, Rajab, Sha'ban, Ramadan, Shawwal, Dhu al-Qa'dah and Dhu al-Hijjah — the month of Hajj. Four of these are sacred months in Islam.

Why dates can differ by a day

Each Hijri month starts when the new crescent moon is sighted, which depends on location and weather. Calculated calendars like Umm al-Qura predict this astronomically and are usually exact, but local moon-sighting announcements can shift a date by one day — always confirm religious dates with your local authority.

Frequently asked questions

How do I convert a Gregorian date to Hijri?

Enter the day, month and year above and the converter instantly shows the equivalent Hijri date with the Islamic month name. Conversion runs both ways.

What is the Umm al-Qura calendar?

Umm al-Qura is the official Islamic calendar of Saudi Arabia, based on astronomical moon-sighting calculations for Mecca. This converter uses the standard tabular algorithm which matches Umm al-Qura very closely, usually within one day.

Why might the Hijri date differ by one day?

Islamic months begin with the sighting of the new crescent moon, which can vary by location and weather. Calculated calendars (including Umm al-Qura) may differ from locally announced moon-sighting dates by ±1 day.

Is this Hijri date converter free?

Yes. It is 100% free with no signup required.