condition mean min max 4 h after light 2352.3 2352.3 2352.3 8 h after light 2195.75 2044.0 2347.5 12 h after light 2175.35 1949.5 2401.2 4 h after dark 2115.5 2100.6 2130.4 8 h after dark 2121.1 2065.2 2177.0 12 h after dark 2392.75 2134.7 2650.8