condition mean min max 4 h after light 576.6 576.6 576.6 8 h after light 568.3499999999999 538.8 597.9 12 h after light 613.35 543.2 683.5 4 h after dark 713.6 695.0 732.2 8 h after dark 748.8 723.9 773.7 12 h after dark 755.4 683.8 827.0