condition mean min max 4 h after light 4.84856 4.31371 5.38341 8 h after light 7.14648 6.98146 7.3115 12 h after light 8.204989999999999 8.09169 8.31829 4 h after dark 5.2404399999999995 4.5527 5.72352 8 h after dark 4.375096666666667 4.18792 4.59286 12 h after dark 5.030896666666667 4.26026 6.21652