Thats a very old question that came into my mind, but I just needed some knowledge from other people that I don’t have. The question is in Islam the Namaz timings are dependent on the solar movement that is they are based on the position of the sun, but our monthly calender is based on the movement of the moon, so we are dependent on both the sun and the moon. But again its strange that we have the same number of week days that is 7 days of the week, as the other religions follow (must be dependent on the sun).
Now my question is, if our month and year is followed by the moon, why we follow the week that is smaller unit of the month and the year followed by the sun ?