condition mean min max 4 h after light 1210.1 1210.1 1210.1 8 h after light 1884.9 1507.5 2262.3 12 h after light 1812.4 1139.9 2484.9 4 h after dark 2036.0 2031.0 2041.0 8 h after dark 2051.65 1303.5 2799.8 12 h after dark 1837.8 1347.9 2327.7