condition mean min max 4 h after light 297.993377 269.416443 326.570311 8 h after light 316.1958315 276.313452 356.078211 12 h after light 348.3638075 316.501976 380.225639 4 h after dark 356.2305485 342.382886 370.078211 8 h after dark 274.625136 230.789135 318.461137 12 h after dark 310.539749 310.539749 310.539749