Your case can be over in as little as 60 days or it can be over in a few years. The amount of time that it takes for a case to be completely finished depends on the issues that arise in your case.
For example, the court may order a social study to evaluate both of the parents and their living situations. The social study itself can take from two months to as long as year or more.
Another example is property division. Complex property issues may require an expert to be brought in to evaluate businesses or property valuations and, like social studies, can take from two months to a year or more.