condition mean min max 4 h after light 603.9537785 580.196574 627.710983 8 h after light 752.5345540000001 671.282354 833.786754 12 h after light 723.862534 668.462826 779.262242 4 h after dark 879.761776 789.770518 969.753034 8 h after dark 1698.4527090000001 1098.330976 2298.574442 12 h after dark 774.272546 774.272546 774.272546