In Washington State can mediation delay the final court date?

A mediation date has been set in my divorce case as well as the final court date. They are close together time wise. If my wife has issues during the mediation procedure could the waiting period be extended and the final court date be nullified? In other words could she delay the finalization of the divorce? It has already gone on for a year: nine months longer legal three month time frame. - Is this your question? Add additional information