condition mean min max 4 h after light 694.4 694.4 694.4 8 h after light 578.45 428.6 728.3 12 h after light 662.05 609.4 714.7 4 h after dark 650.1 432.7 867.5 8 h after dark 786.3499999999999 719.8 852.9 12 h after dark 967.5 948.3 986.7