condition mean min max 4 h after light 474.81568400000003 339.159381 610.471987 8 h after light 578.5879595 573.807093 583.368826 12 h after light 681.6904675000001 681.312058 682.068877 4 h after dark 905.286493 608.163362 1202.409624 8 h after dark 984.9243645000001 837.232057 1132.616672 12 h after dark 679.839029 679.839029 679.839029