condition mean min max 4 h after light 18.63395 15.1356 22.1323 8 h after light 23.6672 22.2668 25.0676 12 h after light 21.4189 19.3122 23.5256 4 h after dark 35.40655 33.0707 37.7424 8 h after dark 26.374299999999998 24.6863 28.0623 12 h after dark 26.57295 24.8135 28.3324