condition mean min max 0 h after light 8.311119999999999 8.30377 8.31847 2 h after light 10.43365 9.9999 10.8674 4 h after light 9.497255 8.91321 10.0813 8 h after light 16.60195 15.932 17.2719 12 h after light 14.791 14.7346 14.8474 2 h after dark 21.39575 20.9923 21.7992 4 h after dark 16.5492 14.3912 18.7072 8 h after dark 16.316499999999998 14.6007 18.0323 12 h after dark 9.752815 8.85023 10.6554