condition mean min max 4 h after light 771.8 771.8 771.8 8 h after light 616.95 567.5 666.4 12 h after light 709.05 562.8 855.3 4 h after dark 848.3 813.6 883.0 8 h after dark 880.4000000000001 799.2 961.6 12 h after dark 1039.95 959.6 1120.3