condition mean min max 4 h after light 678.3 678.3 678.3 8 h after light 617.55 463.5 771.6 12 h after light 329.15 209.1 449.2 4 h after dark 325.15 201.1 449.2 8 h after dark 515.55 340.0 691.1 12 h after dark 762.0999999999999 659.4 864.8