condition mean min max 4 h after light 3.76286 3.44528 4.08044 8 h after light 4.277315 4.20947 4.34516 12 h after light 6.50259 5.25593 7.74925 4 h after dark 8.775559999999999 7.22692 10.3242 8 h after dark 7.3376 7.22788 7.44732 12 h after dark 8.09805 7.7393 8.4568