condition mean min max 4 h after light 11.9227905 11.200534 12.645047 8 h after light 9.464708 8.607625 10.321791 12 h after light 10.5779025 9.877285 11.27852 4 h after dark 11.000779999999999 10.701767 11.299793 8 h after dark 10.077092 9.887338 10.266846 12 h after dark 11.640762 11.640762 11.640762