There are two official holidays in Islam: Eid Al-Fitr and Eid Al-Adha. Eid Al-Fitr is celebrated at the end of Ramadan (a month of fasting), and Muslims usually give zakat (charity) on the occasion. Eid Al-Adha is where Muslims usually sacrifice an animal and distribute its meat among family, friends and the poor.
Ramadan is the month in which Muslims must fast from dawn to sunset. This is meant to feel how the poor people are without food or water. In addition, Muslims fast by denying themselves both food and drink. This, they believe in turn allows for the nourishment of the soul. In addition, there are culture-specific beliefs regarding the watching of television, listening to music, and the perusal of any secular vice that does not in some way enhance spirituality.