In Islam, fasting (known as sawm,[1] Arabic: صوم; Arabic pronunciation: [sˤawm] or siyam, Arabic: صيام; Arabic pronunciation: [sˤijaːm]) is the practice of abstaining, usually from food, drink, sexual activity and anything which substitutes food and drink. During the holy month of Ramadan, sawm is observed between dawn and sunset when the adhan of the Maghrib prayer is sounded.[2] Ramadan is the ninth month of the Muslim lunar calendar and fasting is a requirement for Muslims as it is the fourth of the five pillars of Islam.[3]