condition mean min max 4 h after light 907.9624845 817.558322 998.366647 8 h after light 817.5253125 625.471703 1009.578922 12 h after light 485.3612205 472.957977 497.764464 4 h after dark 288.201003 156.918155 419.483851 8 h after dark 193.9006735 85.953906 301.847441 12 h after dark 424.597906 424.597906 424.597906