Convert between the Gregorian and Hijri Islamic calendars using the Umm al-Qura system. Both directions, with weekday and month number, free online. All processing runs locally in your browser. Your data is not uploaded to any server.
100% Local Processing
How to Use
Move between the Gregorian calendar and the Hijri Islamic calendar. Enter either direction and get the other back, using the Umm al-Qura civil calendar.
Steps
Paste a Gregorian date, or a Hijri date written as DD/MM/YYYY.
Set the direction to match what you entered.
Click Convert and read the result with the weekday and the month number.
Which calendar is used
The Umm al-Qura calendar, the civil calendar used in Saudi Arabia.
It is a tabular calculation, so the same input always gives the same output.
A Hijri year has twelve months and is about eleven days shorter than a Gregorian year.
Year one of the Hijri calendar began in 622 AD.
Features
Both directions work from one input box.
Hijri to Gregorian is resolved against the same calendar engine.
The Gregorian weekday is returned for scheduling purposes.
All processing runs locally in your browser. Your data is not uploaded to any server.