At 12:00 the angle is 0.0 degrees.
At 12:30 the angle is 165.0 degrees.
At 6:00 the angle is 180.0 degrees.
At 3:00 the angle is 90.0 degrees.
At 11:59 the angle is 5.5 degrees.
At 12:01 the angle is 5.5 degrees.
At 8:18 the angle is 141.0 degrees.
At 3:16 the angle is 2.0 degrees.