condition mean min max 4 h after light 636.7069665 604.344783 669.06915 8 h after light 551.4963455 523.991403 579.001288 12 h after light 468.6821235 442.824498 494.539749 4 h after dark 462.64258900000004 424.126835 501.158343 8 h after dark 344.02716499999997 204.914032 483.140298 12 h after dark 565.910558 565.910558 565.910558