condition mean min max 4 h after light 893.5 893.5 893.5 8 h after light 605.15 597.3 613.0 12 h after light 616.35 513.5 719.2 4 h after dark 662.6500000000001 551.6 773.7 8 h after dark 832.05 753.0 911.1 12 h after dark 814.0 693.4 934.6