How to celebrate Ramadan
After the sunset prayer, Muslims gather in their homes or mosques to break their fast with a meal called ifṭār that is often shared with friends and extended family. The ifṭār usually begins with dates, as was the custom of Muhammad, or apricots and water or sweetened milk. There are additional prayers offered at night called the tawarīḥ prayers, preferably performed in congregation at the mosque. During these prayers, the entire Qurʾān may be recited over the course of the month of Ramadan. To accommodate such acts of worship in the evening, work hours are adjusted during the day and sometimes reduced in some Muslim-majority countries. The Qurʾān indicates that eating and drinking are permissible only until the "white thread of light becomes distinguishable from the dark thread of night at dawn." Thus, Muslims in some communities sound drums or ring bells in the predawn hours to remind others that it is time for the meal before dawn, called the suḥūr.
Ṣawm can be invalidated by eating or drinking at the wrong time, but the lost day can be made up with an extra day of fasting. For anyone who becomes ill during the month or for whom travel is required, extra fasting days may be substituted after Ramadan ends. Volunteering, performing righteous works, or feeding the poor can be substituted for fasting if necessary. Able-bodied adults and older children fast during the daylight hours from dawn to dusk. Pregnant or nursing women, children, the old, the weak, travelers on long journeys, and the mentally ill are all exempt from the requirement of fasting.