condition mean min max 4 h after light 1304.6 1304.6 1304.6 8 h after light 1292.65 1254.2 1331.1 12 h after light 691.7 146.7 1236.7 4 h after dark 858.9499999999999 184.3 1533.6 8 h after dark 1086.5 953.7 1219.3 12 h after dark 1121.3 823.3 1419.3