Prayer Time for Harrow
Latitude: 51.5522, Longitude: -0.4158
Prayer times for today: 9 March 2014
IMSAAK - The beginning of the fast. According to the Sharia this is the same as the beginning of Fajr. Here this is taken as the beginning of Astronomical Twilight, which is the beginning of indirect sunlight. This occurs when the sun is 18 degrees below the horizon, or the Solar Zenith angle is 108. When this entry appears is parenthesis it denotes that the Solar depression of 18 degrees does not occur, and the time given shows when the sun starts to ascend, which is when the indirect sunlight starts to increase.
FAJR - Beginning time for morning prayers. According to Sharia this is the same as Imsaak. As a precautionary measure this has been taken as the Solar depression of 16 degrees, or the Solar Zenith angle of 106. When this appears in parenthesis it denotes that the Solar depression of 16 degrees does not occur, and the time given shows when the sun starts to ascend and the indirect sunlight starts to increase.
SHUROOQ - Sunrise, the time when the upper limb of the sun just starts to appear above the horizon. This marks the end time for morning prayers. Allowing for the radius of the sun's disk and the refraction effect due to the earths atmosphere, this has been taken as the Solar depression of 0.833 degrees, or the Solar Zenith angle of 90.833
ZUHR - Mid day, beginning time for noon prayers. This denotes the time when the sun's centre crosses the meridian and reaches the minimum zenith angle. A small correction of about 1 - 2 minutes needs to be made if the time for the meridian crossing of the backward limb of the sun is required.
ASR (1) - Also known as Asr-Shafi'i. Time when the shadow of a vertical rod is equal to the length of the rod plus its shadow at noon.
ASR (2) - Also known as Asr-Hanafi. Time when the shadow of a vertical rod is equal to its shadow at noon plus twice the length of the rod.
MAGHRIB - Sunset, time when the upper limb of the sun just disappears below the horizon.
ISHA - End of Astronomical Twilight, end of the indirect sunlight. This occurs when the Sun is 18 degrees below the horizon. (//.//) In this entry indicated that the Solar depression of 18 does not take place, and one should consult a religious authority for the correct time for the Isha prayers in this circumstances.
Though due to care has been taken in compiling this time table, no responsibility for loss or damage of any kind arising from the use of information contained in it will be entertained