condition mean min max 0 h after light 11.5549 11.291 11.8188 4 h after light 8.20238 7.87135 8.53341 8 h after light 6.992535 6.81439 7.17068 4 h after dark 9.052859999999999 7.68712 10.4186 8 h after dark 10.637725 9.17285 12.1026 12 h after dark 10.996425 9.25195 12.7409