How to Convert Hijri to Gregorian Dates
Simple step-by-step procedure for accurate calendar alignment
Converting a Hijri (Islamic lunar) date to its Western Gregorian (solar) equivalent requires mapping lunar month lengths (29 or 30 days) against solar calendar cycles. To convert any Hijri date using our calculator:
Select Hijri Day
Choose the day of the lunar month (1 through 30).
Pick Islamic Month
Select from the 12 Hijri months (e.g., Ramadan, Shawwal, Muharram).
Enter Year & View Result
Input the Hijri year (e.g., 1448 AH) to immediately receive the Gregorian date, day of week, and numeric format.
How to Convert Gregorian to Hijri (Miladi to Hijri)
Quick conversion for GCC resident paperwork and visa validity
Converting a Gregorian date to Hijri is necessary when filing official documents in Saudi Arabia, checking Iqama expiration on Absher, or confirming religious dates. Click the ⇄ Swap button or toggle to Gregorian → Hijri mode, select the standard date (Day, Month, Year), and the converter will instantly calculate the corresponding Islamic date along with its Arabic representation.
What Is the Islamic Hijri Calendar?
The Islamic Hijri calendar is a lunar calendar based on 12 synodic lunar months. The calendar year spans 354 or 355 days, making it 10 to 12 days shorter than the solar Gregorian year. Year 1 AH corresponds to 622 CE, marking the migration of Prophet Muhammad (PBUH) from Makkah to Madinah. The four sacred months (Al-Ashhur Al-Hurum) in Islam are Muharram, Rajab, Dhu al-Qi'dah, and Dhu al-Hijjah.
What Is the Gregorian (Miladi) Calendar?
The Gregorian calendar is the internationally accepted solar calendar consisting of 365 days (366 in leap years) divided into 12 months. In the Middle East and Gulf region, it is known as Al-Taqwim Al-Miladi (التقويم الميلادي). Most international commercial banks, corporate payroll systems, and flight schedules across the GCC operate on the Gregorian system.
The Saudi Umm al-Qura Calendar Standard
The Umm al-Qura calendar (تقويم أم القرى) is the official astronomical calendar established by the Kingdom of Saudi Arabia. Maintained by the Institute of Astronomical and Geophysical Research at the King Abdulaziz City for Science and Technology (KACST) in Riyadh, it calculates the new month based on the astronomical conjunction of the moon occurring before sunset at the coordinates of the Holy Kaaba in Makkah.
Why Can Hijri Dates Differ by One Day?
While civil and governmental agencies rely on the calculated Umm al-Qura calendar for administrative planning, key religious observances (such as the beginning of Ramadan, Eid al-Fitr, the Day of Arafah, and Eid al-Adha) are determined by traditional physical or optical moon sighting (Ru'yat al-Hilal) as declared by the Supreme Court of Saudi Arabia.
Because atmospheric conditions, cloud cover, and geographical longitudes differ across GCC member states (Saudi Arabia, UAE, Qatar, Kuwait, Bahrain, and Oman), the official start of a religious month may occasionally differ by one day from country to country.
The 12 Islamic Months in Order
Practical Applications for GCC Residents & Expatriates
For millions of foreign workers and expatriate professionals living in Saudi Arabia and the wider Gulf region, converting between Hijri and Gregorian dates is a routine necessity:
Iqama & Residence Visa Renewals
Many Saudi residency cards (Muqeem / Absher) state expiry dates in Hijri format. Converting to Gregorian ensures timely renewal to avoid late fines.
Exit / Re-Entry Visa Deadlines
Single and multiple exit/re-entry visas issued through the Jawazat immigration system frequently include return deadlines formatted in Hijri dates.
Labor Contracts & EOSB Calculation
Saudi Labor Law Article 84 calculations and Qiwa employment contracts may specify commencement and termination milestones in the Islamic calendar.
Driving License & Vehicle Istimara
Saudi driving licenses and vehicle registration (Istimara) cards often carry Islamic expiration dates requiring conversion for insurance renewal.
Frequently Asked Questions
Everything you need to know about Islamic and Western date conversions
1. What is a Hijri date?▾
A Hijri date is a date within the Islamic lunar calendar, designated with AH (Anno Hegirae). The calendar began in 622 CE with the migration (Hijrah) of Prophet Muhammad (PBUH) from Makkah to Madinah. It consists of 12 lunar months and approximately 354 or 355 days per year.
2. How do I convert Hijri to Gregorian?▾
To convert a Hijri date to Gregorian, select the Hijri day, month (such as Ramadan or Shawwal), and year (such as 1448 AH) in our calculator. The tool references the official Saudi Umm al-Qura astronomical standard to instantly generate the exact Gregorian equivalent, day of the week, and formatted date.
3. How do I convert Gregorian to Hijri?▾
To convert a Gregorian date to Hijri, switch the calculator to "Gregorian → Hijri" mode, choose the Western day, month, and year (e.g., 27 February 2027), and click Convert. The converter calculates the corresponding Islamic day, month name in English and Arabic, and year AH.
4. What is the difference between Hijri and Gregorian dates?▾
The primary difference is that the Hijri calendar is strictly lunar (based on the moon's 29.53-day cycle, totaling 354–355 days/year), whereas the Gregorian calendar is solar (based on the Earth's orbit around the sun, totaling 365–366 days/year). As a result, the Hijri year is approximately 10 to 12 days shorter, causing Islamic dates to shift earlier through the solar seasons each year.
5. What does Hijri mean?▾
The term "Hijri" (هجري) derives from the Arabic word "Hijrah" (الهجرة), which refers to the historic migration of Prophet Muhammad (PBUH) and early Muslims from Makkah to Madinah in 622 CE. This event marks Year 1 of the Islamic calendar.
6. What does Miladi mean?▾
In Arabic and across the GCC, "Miladi" (ميلادي) refers to the Gregorian or Christian solar calendar, stemming from "Milad" (birth), referencing the traditional reckoning from the birth of Jesus Christ (Isa AS). It is designated as AD or CE in English.
7. What is the Islamic calendar?▾
The Islamic calendar is a pure lunar calendar composed of 12 months: 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. It dictates Islamic religious observances, fasting during Ramadan, and the annual Hajj pilgrimage.
8. What calendar does Saudi Arabia use?▾
Saudi Arabia officially uses the Umm al-Qura Hijri calendar for religious observances, traditional occasions, and civil legal procedures. While government payroll and commercial contracts frequently align with the Gregorian solar calendar, government portals such as Absher, Qiwa, Muqeem, and Najiz provide dual Hijri and Gregorian date tracking.
9. What is the Umm al-Qura calendar?▾
The Umm al-Qura calendar is the official astronomical lunar calendar computed and maintained in the Kingdom of Saudi Arabia by the King Abdulaziz City for Science and Technology (KACST). It calculates new moon conjunctions relative to the coordinates of the Kaaba in Makkah.
10. Why can the Hijri date differ by one day?▾
A Hijri date can occasionally vary by one day between countries due to differences in geographical location, local atmospheric visibility, and whether local Islamic authorities rely on physical crescent moon sighting (Ru'yat al-Hilal) or calculated astronomical conjunctions.
11. Is this Hijri converter accurate?▾
Yes, LifeInGulf's converter utilizes the official Saudi Umm al-Qura astronomical standard powered by native internationalization algorithms. It provides exact date conversion for civil, legal, and visa records across the GCC.
12. What is today's Hijri date?▾
Today's Hijri date is calculated dynamically in real-time at the top of our converter using the visitor's current date and the Saudi Umm al-Qura calendar standard. You can also click the "Today's Date" button to immediately populate the calculator.