condition mean min max 0 h after light 39.0834 37.8386 40.3282 4 h after light 26.70815 25.195 28.2213 8 h after light 20.713 20.2449 21.1811 4 h after dark 21.46845 19.1062 23.8307 8 h after dark 25.212 23.6112 26.8128 12 h after dark 26.000500000000002 23.0695 28.9315