condition mean min max 4 h after light 418.7 418.7 418.7 8 h after light 423.55 375.6 471.5 12 h after light 506.9 464.9 548.9 4 h after dark 501.79999999999995 480.3 523.3 8 h after dark 552.55 411.4 693.7 12 h after dark 469.85 431.8 507.9