Skip to content


Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time

Muslim Prayer Timetable Extension

Under Development 🚀

Salams! The original Prayer Times was released in 2008 and over the years of maintenance, I have decided to re-implement it under a modern stack and make it significantly better.
  • 🦊 Add Firefox Support
  • 🎨 Add Themes with fresh design
  • 👩‍💻 Modernize the tech stack (React/Webpack/TypeScript/ManifestV3)
  • 🔨 Fix a bunch of bugs with prayer times, notifications, etc.
  • Allow detailed prayer time customization

If you would lke to help with Translations, Art Themes, or Coding, please reach out!


This is a Chromium / Firefox 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.

Prayer Calculation

This extension is developed by Mohamed Mansour but the prayer time calculations are based off the brother Dr. Hamid Zarrabi-Zadeh

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