I didn't check a box on the poll, because the box I would check wasn't there.
It depends on the relationship. A long term marriage with kids, is going to take a while to get over.
The appropriate time is when you are ready to move on. After the divorce is final and your have processed your trauma is when you should be ready. That takes time. You don't want to drag your dirty laundry into your next relationship.
I do agree that there are curveballs and there are exceptions to every rule.
I don't think it is something one should actively pursue until they are ready.
Depending on the relationship and the person, they could be ready quick, and others take years.