condition mean min max 4 h after light 11.010592500000001 10.597944 11.423241 8 h after light 11.460729 11.460729 11.460729 12 h after light 11.069456500000001 9.47905 12.659863 4 h after dark 11.8437135 11.294921 12.392506 8 h after dark 12.780956 11.882359 13.679553 12 h after dark 11.59219 11.59219 11.59219