condition mean min max 4 h after light 1267.4335059999999 1242.650412 1292.2166 8 h after light 1120.8353335 1051.389248 1190.281419 12 h after light 1467.115608 1444.306852 1489.924364 4 h after dark 1274.2146475 1166.231788 1382.197507 8 h after dark 1551.032427 1446.103446 1655.961408 12 h after dark 1944.547931 1944.547931 1944.547931