condition mean min max 4 h after light 12.12045 10.692 13.5489 8 h after light 9.919995 9.75599 10.084 12 h after light 12.3689 11.3086 13.4292 4 h after dark 12.828199999999999 12.3064 13.35 8 h after dark 13.5626 13.2623 13.8629 12 h after dark 13.75825 13.7062 13.8103