A remarkable astronomical event is set to make 2039 a memorable year for Muslims around the world. People across the Muslim world could witness something that happens only on rare occasions: three Eid celebrations within a single Gregorian calendar year.
The unusual phenomenon has drawn attention from Saudi Arabia’s renowned climate and astronomy expert, Dr. Abdullah Al Misnad, who explained that the rare occurrence is the result of the difference between the Islamic lunar calendar and the Gregorian solar calendar.
Unlike the Gregorian calendar, which follows the Earth’s orbit around the Sun, the Islamic calendar is based on the phases of the Moon. As a result, the Islamic year is around 11 days shorter, causing Islamic months to shift earlier each year on the Gregorian calendar.
Over time, this gradual shift allows Islamic events—including Ramadan, Eid-ul-Fitr, and Eid-ul-Adha—to move through every season. In exceptionally rare cases, the timing aligns in a way that allows three Eid celebrations to fall within the same Gregorian year.
That’s exactly what’s expected to happen in 2039. The year is forecast to begin with one Eid, followed by another later in the year, and then a third Eid before the calendar turns to 2040—creating an extraordinary milestone for Muslims worldwide.
Experts say this rare alignment beautifully illustrates the unique nature of the Islamic calendar and its deep connection to the lunar cycle. While such an event has occurred in the past, it remains an uncommon phenomenon that captures the interest of astronomers and the public alike.
For millions of Muslims, 2039 is shaping up to be a truly special year—one filled with extra moments of celebration, gratitude, and spiritual reflection. It’s a rare reminder of how the lunar calendar continues to create extraordinary moments that bridge faith, astronomy, and history.
