condition mean min max 4 h after light 3134.235994 3047.14469 3221.327298 8 h after light 2306.1620974999996 2187.015215 2425.30898 12 h after light 2396.0199985 2229.102389 2562.937608 4 h after dark 2165.4193955 1806.859 2523.979791 8 h after dark 1895.1063895000002 1271.057645 2519.155134 12 h after dark 2880.223593 2880.223593 2880.223593