Bids for work and supplies to be furnished the board of park trustees shall be enclosed in a sealed envelope and deposited with the clerk of the board, such envelope shall have indorsed thereon the nature of the bid, and all bids shall be opened at the time, date, and place specified in the notice to bidders or specifications. The time, date, and place of bid openings may be extended to a later date by the board of park trustees, provided that written or oral notice of the change shall be given to all persons who have received or requested specifications no later than ninety-six hours prior to the original time and date fixed for the opening.
R.C. §755.32