Why Prayer Times Change Every Day
A direct explanation of why Fajr, Dhuhr, Asr, Maghrib, and Isha move day by day.
Prayer times change because the sun’s position changes relative to each city throughout the year. Fajr, Maghrib, and Isha can move noticeably as day length changes.
A daily change does not mean the timetable is broken. It usually reflects season, latitude, longitude, timezone, and the selected calculation method.
Where the Change Shows Most
Fajr, Maghrib, and Isha often show the clearest daily shifts, while Dhuhr follows solar noon and Asr follows shadow length.
Weekly and monthly city schedules make the pattern easier to read than a single day.
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.