In 2016, Ramadan will start on or about June 5, 2016. Ramadan lasts 29 to 30 days, during which Muslims abstain from food and drink from pre-dawn to sunset. Fasting during Ramadan is obligatory for Muslims. Muslims also increase their worship and study of the Qur’an during Ramadan, and oen aending late night prayers that begin an hour and a half aer sunset and last for two hours. These late nights cause many Muslims to rise later than usual, and some people may appear fatigued due to hunger, thirst and disrupted sleep.