condition mean min max 4 h after light 342.866229 272.808094 412.924364 8 h after light 384.1967025 363.853656 404.539749 12 h after light 392.933145 378.924364 406.941926 4 h after dark 457.0161445 395.462826 518.569463 8 h after dark 431.17684099999997 427.669203 434.684479 12 h after dark 445.871995 445.871995 445.871995