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Hijri Gregorian Date Converter — Umm al-Qura Calendar

Convert Gregorian dates to Hijri and Hijri dates to Gregorian with the Umm al-Qura calendar used in Saudi Arabia or the tabular Islamic calendar. Shows the weekday and the date in Arabic.

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Supports Hijri years 1300–1600 (1882–2174 CE). Dates are calculated, not based on moon sighting, so a religious date can differ by one day.

入力は各 100,000 UTF-16 単位、結果は 1,000,000 単位までです。対応形式と例は以下をご確認ください。

結果

内容を入力するかサンプルを読み込み、実行してください。結果がここに表示されます。

使い方

  1. Choose the direction: Gregorian to Hijri or Hijri to Gregorian.
  2. Enter the date as year-month-day, for example 2026-10-19 or 1448-05-08. Pick Umm al-Qura (Saudi official) or the civil tabular calendar.
  3. Convert to see the converted date, the weekday and the date written out in Arabic and English.

変換例

2026-10-19 (Gregorian) → 8 Jumada al-Ula 1448 AH (Umm al-Qura)

仕様と制限

Umm al-Qura is the calendar Saudi Arabia uses for official dates. The civil (tabular) calendar uses a fixed 30-year cycle and can differ from it by a day or two.

The start of Ramadan, Shawwal and Dhu al-Hijjah is announced after moon sighting, which can move the actual date by a day. Use the official announcement for religious dates.

FAQ

Which Hijri calendar should I choose?

Choose Umm al-Qura for dates used in Saudi Arabia and most official documents. The civil calendar is an arithmetic calendar used in some software and historical tables.

Why is my converted date one day off?

Calculated calendars cannot know local moon sightings. Countries that start months after sighting the crescent may be a day ahead of or behind the calculated date.

Can I convert dates before 1882?

Not with this tool. The supported range is Hijri 1300–1600, where the browser’s Umm al-Qura data is reliable.

形式の参考資料

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