Millions of Muslims will celebrate Eid al-Fitr this week as the holy month of Ramadan comes to an end.
Ramadan is observed with a period of fasting that sees people refrain from eating and drinking between dawn and sunset.
The fasting period puts focus on prayer, purification, and charitable acts, and its practice reminds Muslims of the suffering of the poor.
The celebration of Eid, which means 'feast' or 'festival', marks the end of Ramadan and the start of Shawwal, the 10th month of the Islamic calendar.
It begins at the first sighting of the crescent moon, which is announced by local religious authorities.
This year, it will start on Wednesday evening and end on Thursday evening in the UK, Saudi Arabia and Pakistan.
Muslims celebrate Eid by spending time with their families, feasting and praying.
There are actually two festivals of Eid celebrated each year in the Islamic calendar - Eid al-Fitr and Eid al-Adha.
This week, Muslims will celebrate Eid al-Fitr, which is also known as the 'festival of breaking fast'.
The second Eid is known as the 'festival of sacrifice' and is marked around two months later when many Muslims perform the Hajj pilgrimage.
Eid al-Fitr typically lasts around three days.
This year, for the second time, it will be celebrated under coronavirus restrictions.
The Muslim Council of Britain said many of the usual festivities, including large indoor gatherings, will not be possible.
However, people can still take part in Covid-19-safe Eid prayers at their local mosque and have meals outdoors.
