condition mean min max 4 h after light 749.4 749.4 749.4 8 h after light 714.1 676.0 752.2 12 h after light 665.9000000000001 613.2 718.6 4 h after dark 787.0 691.1 882.9 8 h after dark 857.05 813.5 900.6 12 h after dark 773.4 719.3 827.5