condition mean min max 4 h after light 5.39716 5.21013 5.58419 8 h after light 5.357855 5.33463 5.38108 12 h after light 7.088150000000001 7.00126 7.17504 4 h after dark 6.08317 5.69466 6.47168 8 h after dark 5.950115 5.52688 6.37335 12 h after dark 5.365855 4.97044 5.76127