ISNA
The Islamic Society of North America, a major Muslim organization in North America whose prayer time calculation standard uses solar depression angles of 15° for Fajr and 15° for Isha, and is widely used for prayer time calculation in North America.
Timeline (last 90 days)
Muslim Prayer Reminder has 12 authoritative astronomical calculation standards built in, including Umm Al-Qura, Muslim World League, Egyptian General Authority of Survey, ISNA and others.
The Muslim World League uses a solar depression angle standard of Fajr 18° and Isha 17°; ISNA uses Fajr 15° and Isha 15°; Umm Al-Qura uses Fajr 18.5° combined with a fixed 90-minute delay for the night prayer.
All Facts (2)
Muslim Prayer Reminder has 12 authoritative astronomical calculation standards built in, including Umm Al-Qura, Muslim World League, Egyptian General Authority of Survey, ISNA and others.
50%UnverifiedThe Muslim World League uses a solar depression angle standard of Fajr 18° and Isha 17°; ISNA uses Fajr 15° and Isha 15°; Umm Al-Qura uses Fajr 18.5° combined with a fixed 90-minute delay for the night prayer.
50%