condition mean min max 4 h after light 8910.3964705 8475.868577 9344.924364 8 h after light 10699.870875 10197.98987 11201.75188 12 h after light 10067.1702645 9363.643449 10770.69708 4 h after dark 8589.879473 6646.992156 10532.76679 8 h after dark 8895.927132 8315.229174 9476.62509 12 h after dark 7159.078211 7159.078211 7159.078211