Salat is an Islamic obligation (prayer) that should be performed within a stipulated period. Based on the eccentricity of the Earth's orbit and its axis which affect the time for salat has led to JAKIM establishing the Time Zone Concept considering all zones. Scientifically, two types of techniques are used to specify the time of salat: the Western Most Point technique and the Multiple Reference Point technique. This study compared these techniques based on the calculation between the various setting points and their effects on the time for salat in 2013 for all zones within Selangor. Findings showed that the Multiple Point technique is the most suitable as it represents the entire zone.