condition mean min max 4 h after light 681.080413 492.681528 869.479298 8 h after light 705.250086 637.8835 772.616672 12 h after light 630.6935955 597.385903 664.001288 4 h after dark 438.4504765 365.745819 511.155134 8 h after dark 409.8730315 393.684217 426.061846 12 h after dark 274.228282 274.228282 274.228282