Prayer time variations in France linked to calculation methods

Prayer schedules in French cities like Marseille and Tremblay-en-France vary due to different astronomical calculation methods used by various institutions and mosques.

Discrepancies in Fajr and Isha times are primarily driven by the solar depression angle selected. In France, the Grande Mosquée de Paris typically recommends a 12° angle, which is widely adopted by local mosques to better suit temperate zones with short summer nights. In contrast, the Muslim World League (MWL) uses an 18° angle, which results in earlier Fajr and later Isha times. These differences can span several dozen minutes during the summer months.

Additionally, variations in Asr prayer times can occur depending on the specific legal school (madhhab) followed. To ensure accuracy, practitioners are advised to consult the specific institutional websites of their local mosques rather than relying on generic international aggregators.