condition mean min max 0 h after light 300.904 260.183 341.625 4 h after light 150.562 146.71 154.414 8 h after light 109.34085 84.9707 133.711 4 h after dark 170.295 161.259 179.331 8 h after dark 186.1415 181.613 190.67 12 h after dark 252.013 249.238 254.788