condition mean min max 4 h after light 891.0 891.0 891.0 8 h after light 648.3 565.7 730.9 12 h after light 559.8499999999999 532.9 586.8 4 h after dark 624.4 556.4 692.4 8 h after dark 710.6500000000001 581.6 839.7 12 h after dark 721.5999999999999 646.3 796.9