condition mean min max 4 h after light 9.996763333333334 9.19349 10.4281 8 h after light 5.8409933333333335 1.69112 10.1527 12 h after light 9.27495 5.2127 14.6554 4 h after dark 9.427050000000001 7.50175 11.6562 8 h after dark 5.729143333333333 3.87073 7.99794 12 h after dark 2.11997 1.82443 2.28469