Convert any Gregorian date to Hijri (Islamic) and back, instantly.
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Based on the Umm al-Qura calendar. Actual dates depend on local moon sighting and may vary by ±1 day.
The Hijri (Islamic) calendar is a lunar calendar with 12 months totaling 354 or 355 days — about 11 days shorter than the Gregorian year. That's why Ramadan, Hajj, Eid al-Fitr and Eid al-Adha shift earlier each Gregorian year, cycling through all four seasons over roughly 33 years.
The calendar's epoch — 1 Muharram, year 1 AH — corresponds to 16 July 622 CE, the Hijra (migration) of the Prophet Muhammad ﷺ from Makkah to Madinah. "AH" stands for Anno Hegirae, "in the year of the Hijra".
Most converters (this one included) use the Umm al-Qura tabular calendar — Saudi Arabia's official astronomical reckoning. In practice, the start of each Hijri month is confirmed by local moon-sighting committees, so calculated dates may differ from observed dates by ±1 day depending on your country.
Today's Hijri date is shown at the top of the page and updates automatically based on your device's date. The Islamic calendar shifts roughly 11 days earlier each Gregorian year because it's lunar.
It uses the Umm al-Qura tabular calendar — Saudi Arabia's official astronomical reckoning. Actual month starts in your country may differ by ±1 day depending on local moon sighting (rouyat-e-hilal).
Muharram, Safar, Rabi al-Awwal, Rabi al-Thani, Jumada al-Awwal, Jumada al-Thani, Rajab, Sha'ban, Ramadan, Shawwal, Dhu al-Qi'dah, and Dhu al-Hijjah.
Use the converter above to find the Gregorian date corresponding to 1 Ramadan in any Hijri year, or check the key dates list. Exact start depends on moon sighting in your region.
Azan Time shows the live Hijri date alongside every prayer, with Ramadan countdowns built in. Free forever.