Abdülaziz Bayındır (born 1951) is a former Mufti of Istanbul who currently heads an Islamic foundation. Bayındır served as a faculty member at the Istanbul University since 1997.
According to Bayındır the prayer time calculation method used since the Ottomans are erroneous. He believes that prayer times can be calculated at Polar Zones (rather than using Mekkah-time) in line with his interpretation of the Quran. He claims Muslims in Turkey fast 70 minutes more than necessary because of this error. He worked with Adnan Ökten, Istanbul University Department of Astronomy Sciences professor, in this project.
İslam Muhakeme Hukuku (Osmanlı Devri Uygulaması), İstanbul 1986
Kur'an Işığında Tarikatçılığa Bakış, İstanbul, 1997
Din ve Devlet İlişkileri Teokrasi ve Laiklik, İstanbul, 1999
Duada Evliyayı Aracı Koyma ve Şirk, İstanbul, 2001
Ticaret ve Faiz, İstanbul, 2002
Kur'an Işığında Doğru Bildiğimiz Yanlışlar, İstanbul, 2005