The election by a surviving spouse to take an elective share shall be made within the later of: 9 months after the date of the decedent’s death; or 6 months after the first appointment of a personal representative. Within the period for making an election, the surviving spouse may file with the court a petition for an extension of time, with a copy given to the personal representative. For good cause shown, the court may extend the time for election for a period not to exceed 3 months at a time. The surviving spouse may withdraw the election at any time before the expiration of the time for making the election to take an elective share.