condition mean min max 0 h after light 5.70383 5.53607 5.87159 4 h after light 9.529835 8.85387 10.2058 8 h after light 6.400605 5.62534 7.17587 4 h after dark 6.885855 5.25783 8.51388 8 h after dark 7.519445 6.46312 8.57577 12 h after dark 5.2787 4.48401 6.07339