No proceeding for dissolution of marriage, including joint petition, shall be assigned for final hearing until thirty (30) days have elapsed following the date a joint petition is filed or the Respondent is actually summoned or is deemed to have been summoned by warning order. In no event shall any such case be assigned for final hearing before thirty (30) days have elapsed following entry of appearance or service of summons, or, if there is an infant child(ren), before sixty (60) days have elapsed from the dale of service of summons, appearance or responsive pleading, whichever occurs first.