condition mean min max 4 h after light 656.47 654.543 658.397 8 h after light 448.298 447.433 449.163 12 h after light 306.8995 299.832 313.967 4 h after dark 103.02125 96.5675 109.475 8 h after dark 158.442 154.742 162.142 12 h after dark 340.53 330.383 350.677