condition mean min max 4 h after light 574.150142 521.452843 626.847441 8 h after light 451.501847 428.460194 474.5435 12 h after light 572.8117345000001 453.812597 691.810872 4 h after dark 670.7123684999999 614.51406 726.910677 8 h after dark 980.956619 796.511596 1165.401642 12 h after dark 423.114085 423.114085 423.114085