Under Islamic tradition, Ramadan lasts either 29 or 30 days, with the exact length determined by local moon sightings at the end of the month.
That means many Muslims across London are currently planning for several possible Eid dates.
When is Eid 2026 likely to be?
Eid al-Fitr 2026 is expected to fall on either Thursday March 19 or Friday March 20, depending on when the new crescent moon marking the start of the Islamic month of Shawwal is sighted.
Most predictions suggest the first day of Eid in the UK is likely to be Thursday March 19, but this will only be confirmed once the moon is seen.
Moonsighting from the UK
All eyes will be on the sky on the evening of Thursday March 19, when a dedicated moonsighting from the UK is set to take place and be broadcast live online.
The New Crescent Society, a British astronomy group that has been documenting local moon sightings since 2017, will lead observations and livestream them on YouTube and Facebook from 6.35pm.
Astronomical data from UK authorities confirms that the new moon occurs in the early hours of March 19, making a same-evening sighting just about possible but technically very challenging.
The New Crescent Society says that if observers manage to spot the crescent in UK skies that night likely first with binoculars or a telescope and then with the naked eye, it would count as one of the most difficult naked-eye moon sightings ever achieved here.
If the moon is seen over the British Isles on Thursday evening, Eid will be celebrated on Friday March 20 by mosques and communities that follow local UK moonsighting.
If it is not seen, Eid for those communities will instead fall on Saturday March 21, after completing a full 30 days of Ramadan.
What Eid al-Fitr means for Muslims
Eid al-Fitr – literally “the festival of breaking the fast” is the celebration that brings the holy month of Ramadan to a close for Muslims around the world.
It begins on the first day of Shawwal, the month that comes immediately after Ramadan in the Islamic lunar calendar, and serves as a moment of gratitude after weeks of fasting, charity and night prayers.
The occasion traditionally starts with special Eid prayers held shortly after sunrise, followed by greetings, family visits and festive meals shared with loved ones.
In London, this often means mosques running multiple prayer sessions to cope with demand, huge open-air prayers in parks when the weather allows, and busy high streets as people head out in new clothes, exchange gifts and visit relatives.
Eid also has a strong charitable dimension: before the Eid prayer, Muslims are required to give Zakat al-Fitr, a small payment that ensures those in need can also enjoy the celebration.
Many UK charities and mosques set deadlines on March 18 and 19 so donations can reach vulnerable families in time, especially when Eid is expected to fall on March 20.
With no single national authority confirming Eid in Britain, Londoners are being encouraged to keep an eye on several trusted sources in the days ahead.
