condition mean min max 0 h after light 14.75915 14.1842 15.3341 2 h after light 7.51671 7.10469 7.92873 4 h after light 8.36764 7.97852 8.75676 8 h after light 6.893725 6.79887 6.98858 12 h after light 10.815100000000001 9.9481 11.6821 2 h after dark 10.770835 9.55037 11.9913 4 h after dark 11.23397 9.69254 12.7754 8 h after dark 15.34685 15.1461 15.5476 12 h after dark 16.66835 16.3432 16.9935