condition mean min max 3 h after light 8.49128 6.222 9.698 6 h after light 5.74611 3.97509 7.69315 9 h after light 7.69446 6.75056 8.2547 12 h after light 8.33056 6.36701 10.4139 3 h after dark 8.941156666666666 7.30993 9.86921 6 h after dark 9.982846666666667 8.64067 12.6213 9 h after dark 11.168693333333334 8.84568 12.3487 12 h after dark 7.235333333333333 6.48553 7.64898