condition mean min max 0 h after light 1377.655 1362.56 1392.75 4 h after light 2119.105 2017.66 2220.55 8 h after light 1170.21 1036.76 1303.66 4 h after dark 786.795 690.766 882.824 8 h after dark 988.8215 967.573 1010.07 12 h after dark 1448.87 1259.3 1638.44