True Dawn and False Dawn
The difference between true dawn and false dawn and how it relates to Fajr and imsak.
True dawn is connected to the beginning of Fajr time and fasting. False dawn appears earlier and is not the basis for entering Fajr time.
Digital timetables calculate Fajr through twilight angles and the selected method for the city, so differences may appear between methods.
Connection to Imsakiyah
Imsak and Ramadan planning are tied practically to Fajr time, so the city and method should be clear.
Where an official local Ramadan timetable exists, it remains the practical reference for that community.
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.