condition mean min max 4 h after light 503.41375300000004 493.054145 513.773361 8 h after light 768.2753299999999 764.441055 772.109605 12 h after light 530.676221 492.833998 568.518444 4 h after dark 619.2251415000001 589.338286 649.111997 8 h after dark 615.184758 385.362405 845.007111 12 h after dark 321.770518 321.770518 321.770518