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Hijri Date Converter

Convert Gregorian dates to Hijri and back using the tabular civil Islamic calendar, with Arabic month names, weekday and a sighting adjustment.

This converter uses the tabular civil (Kuwaiti) Islamic calendar: a fixed 30-year cycle in which 11 years have 355 days and 19 have 354. It is an arithmetic approximation of the real calendar, which begins each month on a local sighting of the crescent moon. Expect the observed date in your country to differ by up to a day either way — the adjustment control below lets you match it.

16 Rajab 1447
Hijri date
2026-01-05
Gregorian date
Monday
Weekday

Conversion

16 Rajab 1447 AH

In Arabic
16 رجب 1447 هـ
Gregorian
Monday, January 5, 2026
Weekday
Monday — al-Ithnayn
Length of this Hijri month
30 days
Hijri year length
355 days (a leap year in the 30-year cycle)
Julian Day Number
2461046

Months of 1447 AH

#MonthArabicDaysStarts (Gregorian)
1Muharramمحرم302025-06-27
2Safarصفر292025-07-27
3Rabi' al-Awwalربيع الأول302025-08-25
4Rabi' al-Thaniربيع الآخر292025-09-24
5Jumada al-Ulaجمادى الأولى302025-10-23
6Jumada al-Akhirahجمادى الآخرة292025-11-22
7Rajabرجب302025-12-21
8Sha'banشعبان292026-01-20
9Ramadanرمضان302026-02-18
10Shawwalشوال292026-03-20
11Dhu al-Qi'dahذو القعدة302026-04-18
12Dhu al-Hijjahذو الحجة302026-05-18

What is the Hijri Date Converter?

The Islamic calendar is lunar: twelve months of 29 or 30 days making a year about eleven days shorter than the Gregorian one, which is why Ramadan moves steadily backwards through the seasons.

  • Two-way conversion through the Julian Day Number, exact and reversible
  • Month names in Arabic script and in transliteration
  • Sighting adjustment from minus two to plus two days
  • Shows month length, leap-year status and the Julian Day Number
  • Full table of all twelve months of the Hijri year with their Gregorian start dates
  • Matches the islamic-civil calendar built into your browser exactly

How to use the Hijri Date Converter

  1. 1

    Choose the direction: Gregorian to Hijri, or Hijri to Gregorian.

  2. 2

    Enter the Gregorian date (or press Use today), or set the Hijri year, month and day.

  3. 3

    If your local calendar runs a day ahead or behind the table, pick that offset in the sighting adjustment.

  4. 4

    Read the converted date with its Arabic form, weekday, month length and leap-year status.

  5. 5

    Check the months table to see when each month of that Hijri year begins in the Gregorian calendar.

About the Hijri Date Converter

The Islamic calendar is lunar: twelve months of 29 or 30 days making a year about eleven days shorter than the Gregorian one, which is why Ramadan moves steadily backwards through the seasons. This converter maps dates both ways through the Julian Day Number using the tabular civil algorithm, a 30-year cycle in which 11 years carry an extra day.

A tabular calendar is an arithmetic approximation. The calendar people actually observe starts each month on a local sighting of the crescent moon, so the printed date in your country can fall a day either side of the table. The sighting adjustment control shifts the result by up to two days so you can line it up with your own local calendar.

Each conversion shows the Hijri date in transliteration and in Arabic script, the weekday in both English and Arabic transliteration, the length of the month, whether the Hijri year is a leap year, and the underlying Julian Day Number. It all runs in your browser with no server involved.

Frequently asked questions

What is today's Hijri date?

Press Use today and the tool converts your device's current date. Remember that the tabular calendar it uses may differ by a day from the date announced locally, since real Islamic months begin on a crescent sighting rather than on arithmetic.

Why does my Hijri date differ by one day from this tool?

Because observed Islamic calendars depend on where the crescent moon was actually sighted, and different countries reach different conclusions on the same evening. Use the sighting adjustment control to shift the result to match your local calendar.

What is the tabular Islamic calendar?

It is a purely arithmetic version with a 30-year cycle: months alternate 30 and 29 days, and 11 of the 30 years gain a day at the end of Dhu al-Hijjah. It is used for civil and administrative purposes because it is predictable years in advance.

How many days are in an Islamic year?

354 days in a common year and 355 in a leap year, against 365 or 366 for the Gregorian year. That eleven-day gap is why Islamic dates move earlier through the Gregorian seasons by roughly eleven days every year.

When did the Hijri calendar begin?

Its epoch is 1 Muharram 1 AH, which corresponds to 16 July 622 in the Julian calendar, or 19 July 622 in the proleptic Gregorian one. This converter is anchored on exactly that day and refuses dates before it.

Is the conversion done on a server?

No. Every conversion is integer arithmetic running as JavaScript in your browser. Nothing about the dates you enter leaves your device, and the page works with no network connection.

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