condition mean min max 4 h after light 454.431998 278.232057 630.631939 8 h after light 425.36166249999997 382.539749 468.183576 12 h after light 405.017652 397.10201 412.933294 4 h after dark 231.961187 154.585127 309.337247 8 h after dark 254.792695 252.727076 256.858314 12 h after dark 249.348126 249.348126 249.348126