So I just tested the divine twice, it has a total duration of 1 minute and 30 seconds. When it is level 2 divine. As soon as I have additional carol essence to level it, I will update this post.
On another note with the dmg red, it seems that dmg red doesn't increase HP exponentially. At 90 percent dmg red it's HP isn't increased by 10, but by 1.9. I've looked into it for months. Can't complain much since that thing has almost a million HP.
I love my enlightened Carol D'Belle, I have heavily enchanted her. Currently at Enlightenment lvl 10, insight lvl 13. Will take a lot of work to get her fully maxed out. Unfortunately Snowy and the Yeti die fast in guild clash when near high level Victory Statues, otherwise lots of fun and highly underestimated by many people.