condition mean min max 4 h after light 1030.015044 343.499121 1716.530967 8 h after light 2108.9871335 1837.847441 2380.126826 12 h after light 1891.0782104999998 1336.847441 2445.30898 4 h after dark 1036.2851915 607.107071 1465.463312 8 h after dark 596.31603 387.429545 805.202515 12 h after dark 386.648891 386.648891 386.648891