I figured out that the higher the photoperiod increased the more north it must be. So from north to south my order is: 5 1 10 2 8 7 3 4/9 6 Robert Jessell Providence Spring Elementary - 5th Grade - Charlotte, NC The reason for the sunrise/seunset time changing in city #9 is probably because they started daylight savings time. Craig Curren Providence Spring Elementary - 5th Grade - Charlotte, NC