Calculation of Salaat Times on

This article describes how the salaat timings on DBNet are calculated, using sunrise, sunset and twilight times (algorithms for calculating astronomical timings are courtesy of the United States Naval Observatory. Latitude and longitude information was obtained from the Astrodienst catalog.

Example: Los Angeles Markaz, USA December 11th, 2000 (34.1 N, 118.4 W, GMT -8)

Sunrise and sunset times are defined as the time the Sun’s upper edge first breaks the unobstructed (line of sight) horizon, and assuming average atmospheric conditions and level ground.

sunrise 6:50 AM
sunset 4:45 PM

Zawal is the mid-point of the daylight hours (between sunrise and sunset).

Zawal 11:47 AM

The daylight time is divided by 12 to determine a day-ghari. The day-ghari and night-ghari add up to 2 hours, so the night- ghari is determined by subtracting the day- ghari from 120 minutes.

9 hours, 55 minutes

day-ghari 49 min. 35 sec

night-ghari 70 min. 25 sec

Zuhr namaz time starts at zawal and ends after 2 day-gharis.

Zuhr 11:47 AM1:26 PM

Asr namaz time starts immediately after completing zuhr and ends 4 day-gharis after zawal.

Asr 11:47 AM3:05 PM

Maghrib namaz time begins at sunset. There is no end time for maghrib. The length of the namaz time is about as long as it takes one to do wudhu and offer farizat and sunnat prayers.

Maghrib 4:45 PM

Isha namaz time begins after completing maghrib, and ends at nisful layl. Nisful layl and zawal are separated by exactly 12 hours, so they are the same except that one is AM and the other PM.

Isha 4:45 PM11:47 PM

The time for nisful layl begins at the mid-point of the night and ends 1 night-ghari later.

Nisful Layl 11:47 PM12:57 AM

Shafa-witr namaz may be offered immediately after nisful layl.

The last time for shafa-witr, which is also the last time for sihori, is when the sun’s light spreads over the whole of the eastern horizon. This occurs sometime soon after Nautical Twilight, defined as when the sun’s centre is 12 degrees below the horizon. Syedna Taher Saifuddin Saheb (AQ) pronounced 1 hr and 15 minutes before sunrise to be a rule-of-thumb for the last sihori time in Bombay. This “75 minute rule” has been applied by mumineen worldwide and is used in the DBNet Salaat Calculations since it is a safe time for most regions of the world. In cases where the Nautical Twilight occurs earlier than 75 minutes before sunrise, the Nautical Twilight time has been used. This occurs in locations above latitude 45 N or below latitude 45 S.

Shafa-Witr 12:57 AM5:35 AM

Sihori ends 5:35 AM

Fajr namaz time begins immediately after the sihori time and lasts until sunrise. However, since the sihori time above is a “safe” rather than accurate time, there is a gap between sihori and the earliest fajr time. On, this calculated time corresponds to the point when the sun is 10 degrees below the horizon, when its light becomes visible over the whole of the eastern horizon. Again, this is a “safe” time and the actual start of fajr is earlier than this in most regions. In Mumbai and Surat, it is a practice to subtract 1 night ghari from sunrise to determine the earliest fajr time. This is acceptable in areas where fajr calculated in this way does not come too close to the sihori time. In all circumstances, however, it is safer to use the late time as calculated here.

* In some very northern areas, where the phenomena of Nautical Twilight and 10 degrees depression do not occur, the program has not calculated the times. In such cases, ask your Amilsaheb for more information.

Fajr 6:01 AM6:5

Leave a Reply