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Eid Al Adha, the Festival of Sacrifice, holds immense significance for Muslims around the globe. Known for its emphasis on charity, prayer, and the symbolic sacrifice, the holiday follows the Islamic lunar calendar. Experts now predict Eid Al Adha 2025 will be observed on Friday, June 6, based on the sighting of the crescent moon for Dhul Hijjah, the 12th and final month of the Islamic calendar.
This article dives into the science of moon sighting, shares key predictions from astronomical authorities, and highlights what to expect leading up to Eid.
The Islamic calendar follows the lunar cycle, meaning each month begins with the sighting of the crescent moon. For Dhul Hijjah, this moment is particularly significant as it sets the timeline for Eid Al Adha and the sacred day of Arafat, observed one day prior. Predictions for moon visibility, therefore, become a focal point in Muslim-majority countries during this period.
The International Astronomical Centre (IAC) has forecasted that the crescent moon for Dhul Hijjah will likely be visible on Tuesday evening, May 27, 2025. Using advanced astronomical calculations, Ibrahim Al Jarwan, Chairman of the Emirates Astronomical Society, confirmed these estimates. According to him, the new month will commence on May 28, paving the way for Eid Al Adha celebrations on June 6.
The crescent’s visibility depends on multiple factors, including its age, angular distance from the sun, and its height above the horizon. For May 27, the moon will be visible with a telescope in regions like Central and Western Asia, parts of Africa, and Europe. In large parts of the Americas, the crescent may even be seen without the aid of optical tools.
According to Mohammed Shawkat Odeh, director of the IAC, in locations like Abu Dhabi and Makkah, specific conditions for moon visibility include:
Based on the above predictions, May 28 will mark the first day of Dhul Hijjah. The 9th of Dhul Hijjah, known as Arafat Day and revered as the climax of the Hajj pilgrimage, will fall on Thursday, June 5. Consequently, Eid Al Adha is expected on the following day, Friday, June 6.
For many Muslims, these key dates are more than just a marker for celebrations; they provide an opportunity to reflect on personal devotion, charity, and familial bonds. The timing also allows pilgrims performing Hajj in Makkah to plan their sacred rites accordingly.
While the religious tradition of moon sighting remains integral, the application of modern astronomy offers invaluable assistance. Engineers and astronomers utilize sophisticated tools and knowledge to predict the exact date and time of lunar events. For example, the duration for which the crescent is visible and its distance from the horizon can be analyzed to calculate optimal sighting conditions.
However, the IAC has highlighted that technical predictions, while reliable, do not alone determine the crescent’s visibility. Atmospheric conditions such as clarity, binocular assistance, and specific geographical locations also play a significant role.
With May 27 marked as the expected date for the crescent moon sighting, individuals and institutions across Muslim-majority countries are preparing for confirmations. Governments and religious authorities customarily rely on local moon-sighting committees’ official announcements before finalizing the calendar for Dhul Hijjah and Eid Al Adha.
For the wider Muslim community, these dates will shape travel plans, social gatherings, and festivities centered around prayer and sacrifice.
Eid Al Adha 2025 is shaping up to be an occasion marked by joy, worship, and reflection. From the precision of astronomical calculations to the shared excitement of moon sighting, this time of year unites the Muslim world through faith and tradition. Whether viewed through a telescope or naked eye, the crescent moon on May 27 will herald weeks of preparation and spiritual observance.
Stay tuned for updates and enjoy this beautiful season of giving and togetherness.