condition mean min max 4 h after light 544.229828 509.276742 579.182914 8 h after light 536.5231985 498.429725 574.616672 12 h after light 556.7989964999999 534.415079 579.182914 4 h after dark 601.351893 507.954792 694.748994 8 h after dark 660.109072 629.151418 691.066726 12 h after dark 584.192419 584.192419 584.192419