The terms sunrise, zenith and sunset identify positions of the sun rather than unchanging minute values. Juristic rulings require both the type of prayer and the actual time interval.
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Why Fixed Clock Minutes Are Insufficient
Prohibited and Disliked Times for Prayer: Rules and Differences
The terms sunrise, zenith and sunset identify positions of the sun rather than unchanging minute values. Juristic rulings require both the type of prayer and the actual time interval.