condition mean min max 4 h after light 264.3535 262.045 266.662 8 h after light 156.0235 149.549 162.498 12 h after light 109.8905 105.122 114.659 4 h after dark 141.32566666666668 136.257 147.035 8 h after dark 185.581 173.915 194.182 12 h after dark 215.45266666666666 199.416 230.947