condition mean min max 4 h after light 1392.3684715 1199.121135 1585.615808 8 h after light 1779.3884305 1508.92942 2049.847441 12 h after light 1933.787923 1915.987446 1951.5884 4 h after dark 1910.3322245 1420.335788 2400.328661 8 h after dark 1491.3284385 1086.87279 1895.784087 12 h after dark 1200.721177 1200.721177 1200.721177