condition mean min max 4 h after light 1157.0 1157.0 1157.0 8 h after light 1192.7 1092.2 1293.2 12 h after light 980.45 716.7 1244.2 4 h after dark 774.8499999999999 722.4 827.3 8 h after dark 916.0999999999999 740.6 1091.6 12 h after dark 1224.7 1187.5 1261.9