How Fajr Time Is Calculated
Explain twilight angle, method differences, and Ramadan sensitivity.
Explain twilight angle, method differences, and Ramadan sensitivity.
Prayer-time differences are not random. Fajr, Maghrib, and Isha shift with the sun, latitude, longitude, timezone, and calculation method, so the displayed time needs context.
Sources and Methodology
These links explain the general source or method behind the page. They do not turn the page into a personal ruling, and local calendars or authorities still take precedence when they differ.
- NOAA Solar Calculation Details - General solar-position and sunrise/sunset calculation reference.
- U.S. Naval Observatory Solar Coordinates - Approximate solar-coordinate method used in astronomical calculations.
- PrayTimes Calculation Notes - Practical reference for Fajr/Isha angles and common prayer-time methods.
- World Salah Times methodology and accuracy limits - Internal explanation of calculated times and their limits.