condition mean min max 4 h after light 622.7598255 608.93859 636.581061 8 h after light 543.98102 474.65306 613.30898 12 h after light 689.032188 624.271909 753.792467 4 h after dark 625.1524835 596.66736 653.637607 8 h after dark 627.828906 624.271909 631.385903 12 h after dark 621.482109 621.482109 621.482109