Hijri Date Converter
Convert any Gregorian date to the Hijri (Islamic) calendar and back, and see today’s Hijri date, a month view and the key Islamic dates of the year.
Hijri month calendar
Important dates
Night observances begin on the evening of the Gregorian date shown. Local calendars may differ by a day.
How to convert Hijri and Gregorian dates
- To convert a Gregorian date to Hijri, pick it in the Gregorian date box. The result shows the Hijri day, month and year, with the Arabic form underneath.
- To convert a Hijri date to Gregorian, choose the Hijri day and month and type the year. Whichever side you edit becomes the input, and the result shows the other calendar.
- Choose the calculation: Umm al-Qura (Saudi Arabia’s official calendar) or Arithmetic (tabular). If your local calendar or mosque is a day ahead or behind, use Adjust.
- Tap any day in the Hijri month calendar to select it, and use the Important dates list to find Ramadan, Eid and other key days. Copy the result or share a link to the exact date.
What is the Hijri calendar?
The Hijri (Islamic) calendar is a lunar calendar that counts years from the Hijra, the Prophet Muhammad’s migration from Mecca to Medina in 622 CE. 1 Muharram 1 AH fell on 16 July 622 in the Julian calendar. Each of its 12 months begins with the new crescent moon and lasts 29 or 30 days, so a Hijri year has 354 or 355 days. Hijri years are written with the suffix AH (Anno Hegirae).
Because the lunar year is about 11 days shorter than the solar year, Ramadan, Eid al-Fitr and Eid al-Adha come 10 to 12 days earlier each Gregorian year. A rough rule of thumb is Hijri year ≈ (Gregorian year − 622) × 33 ÷ 32: the year 2026 overlaps 1447 and 1448 AH, and 1448 AH began on 16 June 2026. For an exact day you need a table like the one this converter uses.
Umm al-Qura vs. the arithmetic calendar
Umm al-Qura is the official calendar of Saudi Arabia, calculated in advance for Mecca. This tool uses its official month starts for 1300–1600 AH (1882–2174 CE). The arithmetic (tabular) calendar uses a fixed 30-year cycle with 11 leap years; historians use it for old documents, and it can be a day or two away from observed dates. Many countries begin months by local moon sighting or by their own rules, so religious authorities in your country may announce a date one day earlier or later. In that case set Adjust to −1 or +1 day; your choice is remembered on this device.
Islamic days begin at sunset
An Islamic day starts at Maghrib, not at midnight. That is why night observances such as Laylat al-Qadr, the Mawlid, Isra and Mi’raj and Mid-Sha’ban are kept on the evening before the Gregorian date of their Hijri day. The Important dates list marks these with “evening”. Someone born after sunset is, strictly speaking, born on the next Hijri day.
Historical dates
For dates before 15 October 1582 the converter also shows the Julian calendar date, which is what history books normally quote. For example, the fall of Constantinople (29 May 1453) was 20 Jumada al-Awwal 857 AH, and the Moon landing (20 July 1969) was 5 Jumada al-Awwal 1389 AH. Every calculation runs in your browser; no dates are sent to a server.
Frequently asked questions
What is today’s Hijri date?
Today’s Hijri date is shown at the top as soon as the page opens. For example, Saturday 31 October 2026 is 20 Jumada al-Awwal 1448 AH in the Umm al-Qura calendar. Islamic days begin at sunset, so after Maghrib the next Hijri day has already started.
Why do Ramadan and Eid move about 11 days earlier each year?
The Hijri calendar follows the phases of the Moon: its 12 months add up to 354 or 355 days, while the solar year has 365. Ramadan and the two Eids therefore arrive 10 to 12 days earlier every Gregorian year and cycle through all seasons in about 33 years.
Why can my local calendar differ by one day?
Umm al-Qura is Saudi Arabia’s official calendar, calculated in advance for Mecca. Many countries start months by local moon sighting or by other calculation rules, so a month can begin a day earlier or later. Use the Adjust box to shift the Hijri date by −1 or +1 day to match your local calendar.
When does Ramadan start?
The Important dates list below the converter shows the first day of Ramadan, Laylat al-Qadr, Eid al-Fitr, Eid al-Adha and other key days for the selected Hijri year, with their Gregorian dates. In 1448 AH, Ramadan begins on 8 February 2027 according to Umm al-Qura. Local announcements may differ by a day.
What does AH mean?
AH stands for Anno Hegirae, “in the year of the Hijra”. Year 1 AH began with the Prophet Muhammad’s migration from Mecca to Medina in 622 CE. 1 Muharram 1 AH corresponds to 16 July 622 in the Julian calendar (19 July in the proleptic Gregorian calendar).