condition mean min max 0 h after light 12.12865 11.2261 13.0312 4 h after light 8.528625 8.43297 8.62428 8 h after light 4.23536 3.44637 5.02435 4 h after dark 5.831415 5.3377 6.32513 8 h after dark 6.074954999999999 4.86682 7.28309 12 h after dark 11.31325 10.7927 11.8338