Not later than the fifth Tuesday preceding every regular city election and preceding every special election at which any office mentioned in this charter is to be filled, there shall be held, except as otherwise provided in section 5-7, a preliminary election for the purpose of nominating candidates for such general or special election, and section 9-2 of this charter shall not apply.
The notice, or order adopted by the city council, for regular, preliminary and special elections shall specify by name all the officers to be voted for and state, in the form in which it will appear upon the ballot, any question submitted to the voters. They shall specify the time when the polls will be opened and when the polls will be closed. The polls at such election shall be open during such hours as the city council may prescribe; provided, that they shall be opened not earlier than seven o'clock in the forenoon nor later than ten o'clock in the forenoon and shall be kept open at least six (6) hours, but in no event later than eight o'clock in the evening. The ballots to be used at such elections shall be governed by the provisions of section forty-nine of chapter forty-three of the General Laws.