In Pictures: Communities gather in prayer to mark end of Ramadan
Similar to Easter Sunday in the Christian calendar, Eid does not fall on the same day every year.
Muslims across the UK and around the world have marked the end of the holy month of Ramadan by praying together in mosques and coming together to eat.
Eid al-Fitr marks the end of Ramadan, when Muslims are encouraged to engage in dawn-to-dusk fasting for the month.
Typically a three-day festival, it begins with morning prayers before families mark the new month with gifts of toys and clothes.
Similar to Easter Sunday in the Christian calendar, Eid does not fall on the same day every year.
Instead, Eid and the period of Ramadan are both determined by a new moon, as Islam follows the lunar calendar.
British Muslims have been forced to observe Covid-19 restrictions during Eid-al-Fitr for the past two years due to the pandemic, placing curbs on the usual festivities including large indoor gatherings.
Around the world, Muslim communities gathered in what for many was their first chance to mark the end of the holy month together.