condition mean min max 4 h after light 717.2 717.2 717.2 8 h after light 799.6500000000001 556.9 1042.4 12 h after light 692.3 635.7 748.9 4 h after dark 647.35 620.2 674.5 8 h after dark 838.3 813.0 863.6 12 h after dark 881.8 808.8 954.8