Below is an email we received in ICOP from Dr. Zulfiqar Ali Shah, the Executive Director of the North American Fiqh Council of ISNA. It shows that starting from September 2011 ISNA has adopted new angles for Fajer and Isha, which are 17.5 for Fajer and 15 for Isha.
-------- Original Message --------
Date: Sun, 29 Jul 2012 15:07:07 -0400 (EDT)
From: Dr. Zulfiqar Ali Shah
Assalamo alaykum wrwb Akhee al-Habib,
Below is the agreed upon statement.
Fiqh Council of North America Position for Fajr & Isha’
In the FCNA meeting of September 25, 2011 the following position for Fajr & Isha’ was agreed upon:
For North America Use functions of latitude and seasons for Fajr, and Isha’ as determined by Moonsighting.com.
A computer user can go to the following web site to obtain full year prayer times from http://moonsighting.com/pray.php
For most areas in USA this will result Fajr around sun being 17.5° below horizon, and Isha around 15°. The time difference between 17.5° and 15° is about 12 minutes. Fajr will be 12 minutes earlier than calculated for 15°. It is suggested that if one wants to calculate Fajr & Isha based on degrees, one can opt to use 17.5° for Fajr and 15° for Isha’.