condition mean min max 4 h after light 407.0129355 354.847441 459.17843 8 h after light 486.762741 447.924364 525.601118 12 h after light 607.8813775 530.248703 685.514052 4 h after dark 417.3795275 363.163966 471.595089 8 h after dark 352.1828325 347.786542 356.579123 12 h after dark 349.535121 349.535121 349.535121