62In the light of the foregoing considerations, the answer to the question referred is that Article 3(1)(a) of Regulation No 2201/2003 must be interpreted as meaning that a spouse who divides his or her time between two Member States may have his or her habitual residence in only one of those Member States, with the result that only the courts of the Member State in which that habitual residence is situated have jurisdiction to rule on the application for the dissolution of matrimonial ties.