Hijri Date Converter
Convert any Gregorian date to the Hijri (Islamic) calendar and back, using the standard tabular (arithmetic) calendar. See the weekday, the Hijri month name in English, and a live countdown to the next Ramadan. Everything runs in your browser.
Gregorian date to Hijri date
Hijri date
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Weekday
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Days until Ramadan
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Next 1 Ramadan (tabular)
Hijri date to Gregorian date
Gregorian date
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Weekday
Important note: this converter uses the tabular (arithmetic) Islamic calendar. Official Hijri dates for Ramadan, Eid and Hajj depend on the physical moon sighting in your country and may differ by 1 to 2 days from the dates shown here.
The 12 Hijri months
In the tabular calendar, odd-numbered months have 30 days and even-numbered months have 29 days. Dhu al-Hijjah, the 12th month, has 30 days in a leap year (11 leap years in every 30-year cycle).
Frequently asked questions
The tabular (arithmetic) Hijri calendar follows fixed math rules, so every date converts the same way every time. Official religious dates in most countries are set by actual moon sighting, which can shift a month start by 1 to 2 days. Use this converter for planning and the official announcement for religious observance.
Muharram, Safar, Rabi al-Awwal, Rabi al-Thani, Jumada al-Ula, Jumada al-Akhirah, Rajab, Shaban, Ramadan, Shawwal, Dhu al-Qadah and Dhu al-Hijjah. Odd-numbered months have 30 days and even-numbered months have 29 days in the tabular calendar, except Dhu al-Hijjah which has 30 days in leap years.
The countdown is computed from the tabular calendar, so it is exact for that calendar system. The real start of Ramadan depends on the moon sighting in your country and may differ by 1 to 2 days from the tabular date shown here.
Yes. Switch to the Hijri to Gregorian mode, enter the Hijri day, month and year, and the tool shows the matching Gregorian date and weekday using the same tabular calendar math in reverse.