CAIRO: Observant Muslims the world over will soon be united in a ritual of daily fasting from dawn to sunset as the Islamic holy month of Ramadan starts. For Muslims, it’s a time for increased worship, religious reflection and charity. Socially, it often brings families and friends together in festive gatherings around meals to break their fast.

Ramadan is followed by the Islamic holiday of Eid Al-Fitr.

First day of Ramadan expected around Feb. 18-19

Ramadan is the ninth month of the Islamic lunar calendar; the month cycles through the seasons.

The start of the month traditionally depends on the sighting of the crescent moon. This year, the first day of Ramadan is expected to be on or around Feb. 18 or 19. The actual start date may vary among countries and Muslim communities due to declarations by multiple Islamic authorities around the globe on whether the crescent had been sighted or different methodologies used to determine the beginning of the month.