condition mean min max 4 h after light 702.0 702.0 702.0 8 h after light 694.55 671.7 717.4 12 h after light 926.9 913.5 940.3 4 h after dark 1237.3000000000002 1215.9 1258.7 8 h after dark 1153.0 1110.6 1195.4 12 h after dark 965.9 954.0 977.8