condition mean min max 4 h after light 224.375 205.414 243.336 8 h after light 180.9385 179.888 181.989 12 h after light 179.9275 165.048 194.807 4 h after dark 244.70766666666665 237.276 248.712 8 h after dark 268.724 267.143 271.7 12 h after dark 281.7873333333333 276.923 285.667