condition mean min max 4 h after light 1834.6 1834.6 1834.6 8 h after light 1814.85 1791.9 1837.8 12 h after light 1882.4 1749.3 2015.5 4 h after dark 2011.8 1946.4 2077.2 8 h after dark 1851.3000000000002 1671.7 2030.9 12 h after dark 1737.45 1705.7 1769.2