Prayer Time Calculation based on Geolocation for Google Chrome
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README.md

Muslim Prayer Timetable Extension

This is a Google Chrome extension that shows the prayer times for Muslims. It uses HTML5 geolocation features that grabs the current latitude and longitute and fetches the prayer times.

Screenshot of the Chrome Extension

This extension is developed by Mohamed Mansour but the prayer time calculations are based off the brother Dr. Hamid Zarrabi-Zadeh A list of contributions are listed in the AUTHORS file

There are differing opinions on what angle to use to calculate Fajr and Isha. It currently supports 6 different calculations.

Convention Fajr Angle Isha Angle
Leva Research Institute, Qom, Iran* 16 14
University of Islamic Sciences, Karachi 18 18
Islamic Society of North America (ISNA), USA 15 15
Muslim World League (MWL) 18 17
Umm al-Qura, Makkah, Saudi Arabia 19 90 mins after Maghrib
Egyptian General Authority of Survey 19.5 17.5

*Leva Research Institute (L.R.I.) is a religious research center established in 1993 in Qom, Iran For example, according to L.R.I's convention, Fajr = Dhuhr - T(16), and Isha = Dhuhr + T(14).

For more information regarding the calculations, you can visit Dr.Hamid's FAQ