He has forbidden following the solar calender and praying when the sun is at its peak and when it is setting.
Your point is separate, yes a calender can "start" from where ever. The islamic calender has a start date (BUT STILL FOLLOWS THE MOON). It's like the international calender "starts" from 2018 years ago because of jesus birth. That doesn't mean it isn't following the sun.
Your point is separate, yes a calender can "start" from where ever. The islamic calender has a start date (BUT STILL FOLLOWS THE MOON). It's like the international calender "starts" from 2018 years ago because of jesus birth. That doesn't mean it isn't following the sun.