condition mean min max 4 h after light 9.10683 9.03626 9.1774 8 h after light 5.331015000000001 5.28558 5.37645 12 h after light 9.27611 8.45242 10.0998 4 h after dark 11.120935 9.78637 12.4555 8 h after dark 11.2104 11.0999 11.3209 12 h after dark 11.14275 11.0249 11.2606