condition mean min max 4 h after light 1535.2161113333334 1014.626667 1833.386667 8 h after light 2372.052222 2165.12 2621.223333 12 h after light 1830.77 1236.383333 2854.666667 1.5 h after dark 929.3811111 781.2833333 1169.97 5.5 h after dark 1008.9111111 871.8433333 1131.626667 9.5 h after dark 840.8677777666667 767.7333333 882.45