Massachusetts Constitution Amendments Art. LXIV, § 1

The governor, lieutenant-governor, secretary, treasurer and receiver-general, attorney-general, and auditor shall be elected quadrennially and councillors, senators and representatives shall be elected biennially. The terms of the governor and lieutenant-governor shall begin at noon on the Thursday next following the first Wednesday in January succeeding their election and shall end at noon on the Thursday next following the first Wednesday in January in the fifth year following their election. If the governor elect shall have died before the qualification of the lieutenant-governor elect, the lieutenant-governor elect upon qualification shall become governor. If both the governor elect and the lieutenant-governor elect shall have died both said offices shall be deemed to be vacant and the provisions of Article LV of the Amendments to the Constitution shall apply. The terms of the secretary, treasurer and receiver-general, attorney-general, and auditor shall begin with the third Wednesday in January succeeding their election and shall extend to the third Wednesday in January in the fifth year following their election and until their successors are chosen and qualified. The terms of the councillors shall begin at noon on the Thursday next following the first Wednesday in January succeeding their election and shall end at noon on the Thursday next following the first Wednesday in January in the third year following their election. The terms of senators and representatives shall begin with the first Wednesday in January succeeding their election and shall extend to the first Wednesday in January in the third year following their election and until their successors are chosen and qualified.