The Town Council shall provide regulations and restrictions and the boundaries of zoning districts shall be determined, established, and enforced, and from time to time amended, supplemented, or changed; provided, however, that no such regulation, restrictions, or boundary shall become effective until after a public hearing in relation thereto, at which parties in interest and citizens shall have an opportunity to be heard. Upon receipt of the final report of the Planning and Zoning Commission, the Town Council shall conduct a public hearing on the proposed change, provided that before the fifteenth (15) day before the date of the hearing, notice of the time and place of the hearing must be published in an official newspaper or a newspaper of general circulation in the Town.