condition mean min max 4 h after light 714.1 714.1 714.1 8 h after light 816.4 707.4 925.4 12 h after light 796.1 767.7 824.5 4 h after dark 903.0 805.5 1000.5 8 h after dark 825.6500000000001 730.6 920.7 12 h after dark 703.25 694.2 712.3