condition mean min max 4 h after light 10.4482575 9.936503 10.960012 8 h after light 11.398162 10.759617 12.036707 12 h after light 10.936604500000001 10.809321 11.063888 4 h after dark 11.4855685 10.960012 12.011125 8 h after dark 12.094371500000001 10.249719 13.939024 12 h after dark 13.190821 13.190821 13.190821