condition mean min max 0 h after light 30.07585 29.7732 30.3785 4 h after light 28.7648 27.7261 29.8035 8 h after light 19.2192 18.2376 20.2008 4 h after dark 22.539 21.2451 23.8329 8 h after dark 27.34915 26.8623 27.836 12 h after dark 32.0583 31.0551 33.0615