condition mean min max 4 h after light 2066.7 2066.7 2066.7 8 h after light 1907.4 1689.5 2125.3 12 h after light 1718.65 1484.2 1953.1 4 h after dark 1985.1 1169.2 2801.0 8 h after dark 2044.4 1907.7 2181.1 12 h after dark 1476.15 1325.9 1626.4