condition mean min max 4 h after light 526.4473735 515.503447 537.3913 8 h after light 564.7095025 543.462826 585.956179 12 h after light 578.006609 543.462826 612.550392 4 h after dark 457.7705185 372.078211 543.462826 8 h after dark 495.42064600000003 359.163979 631.677313 12 h after dark 710.700157 710.700157 710.700157