🔄 Date Converter
Pick a Gregorian day, month, and year from the lists below, and press "Convert" to instantly get the matching Hijri (Islamic) and Solar (Persian) date, with no manual calculation or extra app needed.
Why do we need to convert dates between calendars?
The world today uses several calendars depending on culture, religion, and region — most notably the Gregorian calendar officially adopted by most countries, the Hijri calendar used for religious transactions and Islamic occasions, and the Solar Hijri (Persian) calendar used in Iran and Afghanistan. Because these calendars differ in their starting point, year length, and month lengths, knowing the matching date between two systems is essential for determining religious occasions, documenting contracts, and confirming birth dates precisely.
The difference between solar and lunar calendars
The Gregorian calendar and the Solar (Persian) calendar are both solar-based, relying on Earth's orbit around the sun, so each year runs roughly 365 days. The Hijri calendar, on the other hand, is based on the moon's cycle around Earth, making its year about 354 days. That's why Hijri occasions shift earlier by roughly 10 to 11 days each Gregorian year — something you'll notice year after year in the dates of Ramadan and Hajj.
Frequently Asked Questions About Date Conversion
How do I convert a Gregorian date to Hijri?
Pick the day, month, and year from the lists on this page and press Convert to instantly get the Hijri equivalent.
What is the Solar (Persian) calendar?
A solar calendar used in Iran and Afghanistan, whose year length is close to the Gregorian year but with a different starting point.
Why does the Hijri date shift each Gregorian year?
Because the Hijri year is about 10 to 11 days shorter than the solar year, since it's based on the moon's cycle rather than Earth's orbit around the sun.