condition mean min max 4 h after light 206.0 206.0 206.0 8 h after light 344.4 243.1 445.7 12 h after light 389.65 290.7 488.6 4 h after dark 560.0 445.8 674.2 8 h after dark 846.2 673.8 1018.6 12 h after dark 745.3 470.1 1020.5