condition mean min max 4 h after light 537.8 537.8 537.8 8 h after light 502.04999999999995 481.2 522.9 12 h after light 522.95 456.1 589.8 4 h after dark 406.45 298.5 514.4 8 h after dark 346.55 340.5 352.6 12 h after dark 408.85 334.7 483.0