condition mean min max 4 h after light 5.185074999999999 4.36296 6.00719 8 h after light 8.4985 8.46717 8.52983 12 h after light 13.9039 13.4203 14.3875 4 h after dark 16.723 16.6812 16.7648 8 h after dark 10.905149999999999 10.3759 11.4344 12 h after dark 9.232669999999999 8.89942 9.56592