condition mean min max 4 h after light 440.1 440.1 440.1 8 h after light 421.85 407.4 436.3 12 h after light 470.85 470.8 470.9 4 h after dark 480.8 423.6 538.0 8 h after dark 601.6500000000001 584.2 619.1 12 h after dark 566.05 523.0 609.1