As to any board or commission of a municipality with a rotating membership, some of the members of which, prior to any change in a municipal election date for such municipality under § 9-164, were elected for terms beginning approximately one year after the date of their election, the legislative body of such municipality may provide for such conforming changes in the beginning date of the terms of office as are designed to continue the rotation with regard to such office as it existed prior to such change, and in the absence of such action by such legislative body, the beginning date of the terms of such office shall be so changed by the clerk of the municipality in preparing the list provided for under § 9-254. With respect to any board or commission of a municipality with a rotating membership established under sections 8-1, 8-4a, 8-5 and 8-19, the authority empowered to prescribe the term of office of the members of such board or commission, if it is authorized under said sections to provide for an odd-numbered year term, may further provide for deferred terms by prescribing which terms are to begin approximately one year from the date on which the terms of municipal officers generally begin in such municipality.