condition mean min max 4 h after light 317.532671 237.107214 397.958128 8 h after light 424.0039645 414.078211 433.929718 12 h after light 1004.0554629999999 705.0639 1303.047026 4 h after dark 956.571126 738.599463 1174.542789 8 h after dark 1320.166654 1283.17411 1357.159198 12 h after dark 574.826922 574.826922 574.826922