condition mean min max 4 h after light 1786.015 1322.663333 2043.295 8 h after light 2524.413889 2010.66 2896.035 12 h after light 2664.9155553333335 2024.133333 3005.28 1.5 h after dark 2649.024444333333 2403.16 2991.873333 5.5 h after dark 1610.0988889999999 1510.373333 1716.486667 9.5 h after dark 1544.8944443333332 1475.903333 1594.533333