condition mean min max 4 h after light 339.1060205 319.385903 358.826138 8 h after light 190.3307935 163.089532 217.572055 12 h after light 173.9454265 130.97282 216.918033 4 h after dark 121.854174 113.284572 130.423776 8 h after dark 195.0933215 155.694822 234.491821 12 h after dark 367.236839 367.236839 367.236839