Everything You Need to Know About Ramadan, Islam's Holiest Month

This week marks the start of Ramadan for more than a billion Muslims around the world.

The month-long observance — which starts on either May 15 or May 16 this year — will see Muslims fasting from sunrise-to-sunset, reciting verses from the Quran and attending prayer sessions. For many of those observing Ramadan, It is a time to become closer to God. It is also a time of joy and for spending time with one's family, and giving to charity and those in need.