condition mean min max 4 h after light 272.9503735 166.904936 378.995811 8 h after light 421.87918049999996 349.655134 494.103227 12 h after light 497.5438265 416.847441 578.240212 4 h after dark 791.2231899999999 593.544354 988.902026 8 h after dark 696.167987 514.464832 877.871142 12 h after dark 213.729978 213.729978 213.729978