condition mean min max 4 h after light 298.475864 237.307517 359.644211 8 h after light 446.21924750000005 350.898746 541.539749 12 h after light 603.144552 543.287816 663.001288 4 h after dark 830.941432 538.552508 1123.330356 8 h after dark 869.4300195 678.693595 1060.166444 12 h after dark 194.847441 194.847441 194.847441