condition mean min max 0 h after light 7.97525 7.09056 8.85994 2 h after light 6.9261 6.91816 6.93404 4 h after light 5.683465 5.57494 5.79199 8 h after light 5.6536100000000005 4.62025 6.68697 12 h after light 8.713645 8.56268 8.86461 2 h after dark 7.388615 7.08632 7.69091 4 h after dark 7.226685 6.32817 8.1252 8 h after dark 10.117815 9.01963 11.216 12 h after dark 9.765305 8.78521 10.7454