condition mean min max 0 h after light 5.86269 5.67155 6.05383 4 h after light 9.343325 8.23465 10.452 8 h after light 8.622405 7.81716 9.42765 4 h after dark 8.165009999999999 7.54214 8.78788 8 h after dark 8.665695 8.01669 9.3147 12 h after dark 7.137725 6.77342 7.50203