How long do divorces take??

The guy I'm dating is going through a dissolution of marriage (which was started before I met him a couple months ago) the thing is I really want it to be over soon so he and I can focus on us and our relationship. I know they are at the point of gathering up the wage information and submitting it to a judge. Any idea how much longer before it's final? Has anyone been through this??

He does have a child they have the parenting plan together and custody agreed on. It seems like the only big issue will be child support