condition mean min max 4 h after light 408.38326 360.604216 456.162304 8 h after light 539.4784245000001 532.525785 546.431064 12 h after light 540.066703 443.47142 636.661986 4 h after dark 574.664526 445.50891 703.820142 8 h after dark 515.9548575 461.57681 570.332905 12 h after dark 485.693595 485.693595 485.693595