These prayers are considered one of the five pillars of Islam, and they are mandatory for all Muslims. Muslims in Istanbul observe five daily prayers: Fajr (before sunrise), Dhuhr (midday), Asr (afternoon), Maghrib (sunset), and Isha (night). Islamic prayer times are determined by the position of the sun in the sky, and they change every day based on the time of year. One of the most important aspects of Islamic life in Istanbul is the daily prayer, or namaz. As the largest city in Turkey, Istanbul is home to a diverse population of Muslims from all over the world. Istanbul, Turkey is a city that is steeped in Islamic history, culture, and tradition. Prayer, Namaz Times and Muslims in Istanbul