condition mean min max 3 h after light 9.398423333333334 8.64288 9.97054 6 h after light 12.2382 11.2055 13.1773 9 h after light 17.157333333333334 14.2463 20.4341 12 h after light 23.5147 21.3424 25.0888 3 h after dark 22.1322 20.8278 23.299 6 h after dark 20.0003 18.8465 21.0442 9 h after dark 15.4266 13.8518 16.7519 12 h after dark 8.182853333333334 6.28604 9.77874