Iranian Calendar

The Iranian Calendar Chrome extension offers seamless conversion among the Iranian, Lunar, and Gregorian calendars for an extensive range of years (5879486 to 5878875 Iranian years). Rooted in a rich history spanning over two millennia, the Iranian calendar is one of the world's longest chronological records, crafted and refined by influential figures like the Persian polymath Omar Khayyam.

This extension leverages the precision of the modern Iranian calendar—commonly used as Iran's official civil calendar—which is uniquely observation-based, starting each new year at the northern spring equinox. Ideal for historians, researchers, and anyone interested in Persian chronology, this tool simplifies date conversion with astronomical accuracy.