Hijri ⇄ Gregorian Date Converter

How to use

1. Enter a Gregorian date to see its Hijri equivalent, or switch direction and enter Hijri day/month/year.
2. The result updates instantly as you type.
3. Use it for Ramadan planning, Eid dates, aqeeqah, nikah anniversaries and historical research.

General information only — not medical, financial or legal advice. Figures cross-checked against public official sources (IRS / HMRC / NHS / WHO guidance); content last reviewed September 2026. For decisions that matter, confirm with a licensed professional in your country.

About this tool

The Hijri calendar is lunar: 12 months of 29–30 days, about 354 days a year. This converter uses the standard tabular (civil) conversion used by most date libraries, computing through the Julian day number so both directions stay consistent. Because real-world Hijri dates are confirmed by moon sighting, printed calendars can differ by ±1 day — the tool states this honestly rather than pretending to false precision.

FAQ

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How the Hijri (Islamic) Calendar Works

The Hijri calendar is lunar: twelve months that begin at the observed crescent of each new moon, so the year runs about 354–355 days — roughly 10–11 days shorter than the Gregorian solar year. That is why Islamic dates drift earlier each Gregorian year, and why Ramadan or Eid arrives in a different season each decade. The months, in order: 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. Four of them (Dhu al-Qi'dah, Dhu al-Hijjah, Muharram, Rajab) are sacred months in which fighting was traditionally forbidden.

Conversion between the systems is pure arithmetic once a month-start convention is fixed — which is exactly where differences arise. This converter uses the widely deployed tabular (arithmetic) Hijri calendar, so results are instant and consistent, and may differ by ±1 day from local moon-sighting declarations.

Why Your Hijri Date May Differ by a Day

Two communities can legitimately celebrate Eid a day apart because month starts depend on physical moon sighting, and sighting depends on location, weather and horizon conditions. Saudi Arabia's Umm al-Qura calendar is computed astronomically and anchors official administrative dates; South Asian and many African communities wait for verified local crescent sighting; some organisations accept sighting anywhere in the country, others require local sighting. None of these is "wrong" — they are different conventions applied to the same sky.

• For prayer timetables and school holidays, follow the announced local dates.
• For historical or genealogical dates, tabular conversion is the standard method.
• When a converted date matters legally (contracts, ID documents), the issuing authority's calendar governs.
• Expect ±1 day differences near month boundaries; mid-month dates convert unambiguously.

Key Islamic Dates 2026 (Approximate, Subject to Sighting)

Dates are pre-computed estimates; confirmed dates are announced after moon sighting and can shift by a day.