The sighting of the new moon determines the start of the month, which leads to countries declaring Ramadan a day or two apart.
"We take care of the elephants, and the elephants are taking care of us," says Rimland Lemojong, a Samburu warrior turned elephant caretaker.
A selection of photographs, covering topics from the Manchester Arena attack to Donald Trump's overseas trip and the Cannes Film Festival.
Mancunians say their city, although united, is still coming to terms with its grief after a suicide bomber struck the Ariana Grande concert.
After visits to Saudi Arabia, Israel and the Palestinian Territories, Trump met Pope Francis in Rome and then met EU and Nato leaders in Brussels.
For followers of central Africa's Kimbanguist church, yesterday (25 May) was Christmas Day.
Attacks in Indonesia and the Philippines this week point to the rise of Isis-affiliated groups networks across the region.
Some 57 people have been killed in two months of protests against Nicolas Maduro's government.
Militants are using Christians and a priest as human shields and have threatened to execute captives.
Home Secretary Amber Rudd said people can expect to see soldiers helping law enforcement at railway stations and government buildings.
Taiwan is the first government to legalise such unions in Asia, where socially conservative attitudes largely hold sway.
The Order was established by the Queen's grandfather George V in 1917 to reward outstanding contributions to the First World War effort.
The city's Muslim, Christian, Jewish and Sikh communities said they wanted to show that Manchester, while shocked, would not be cowed.
Sir Roger Moore, the suave star of seven Bond films, has died in Switzerland after a short battle with cancer.
Trump's motorcade passed through streets lined with heavily armed security forces and an opening in Israel's towering separation barrier.
Hundreds of people watched the punishment ordered by a court in the only part of Indonesia that criminalises same-sex relations and uses Islamic law as its legal code.
At least 22 people were killed and 59 wounded when a suicide bomber struck at a concert in Manchester.
At the very least, there will be an escalation of the violent protests in support of the Palestinian prisoners' hunger strike.
Jerusalem then and now. Move your mouse/finger over each image to switch between 1967 and 50th anniversary of Six Day War.
To some, Trump is "a hero" and "a brother", to others "an idiot with no policy but terrorising" and "a man who spreads war, chaos and killing among people".