condition mean min max 0 h after light 8.445744999999999 8.00874 8.88275 4 h after light 6.80241 5.91159 7.69323 8 h after light 6.85746 6.48124 7.23368 4 h after dark 9.399619999999999 7.96064 10.8386 8 h after dark 11.3124 10.9355 11.6893 12 h after dark 8.28126 8.13524 8.42728