I have a Casio Prayer Compass watch cpw-310. I am facing a problem of difference in Qibla direction with same data input. For example I put data of Lahore City as following;
I found that at same place of my room or any other place, my watch informs the Qibla direction with 42 degree difference. I need help to resolve this problem as because of this problem, I remain in doubtful about Qibla direction in any city.
Please help me out.