condition mean min max 4 h after light 416.9111765 340.281082 493.541271 8 h after light 308.0057165 281.847441 334.163992 12 h after light 305.8292785 281.178829 330.479728 4 h after dark 216.380007 144.223459 288.536555 8 h after dark 145.42436550000002 104.77052 186.078211 12 h after dark 253.373514 253.373514 253.373514