condition mean min max 4 h after light 267.871854 245.819344 289.924364 8 h after light 281.208941 280.693595 281.724287 12 h after light 281.07563 272.519527 289.631733 4 h after dark 340.5495175 262.214943 418.884092 8 h after dark 301.580534 218.489522 384.671546 12 h after dark 206.598322 206.598322 206.598322