A merry go around is flat though. Based on which way you spin, the sun will either spin in a clockwise direction, or a counter clock wise direction, no matter the position of the sun. not matter where on the Merry go around you are, perfectly demonstarting the principal I lay out.

Start spinning a ball on the other hand, and the sun will either move in a clock wise direction, or a counter clock wise direction, based on if you are on top of the ball, or under the ball.