Public hearings required under this article may, at the discretion of the body conducting the hearing, during a properly convened session of the hearing, be continued and reconvened from time to time, provided that notice of the date, time, and place of each subsequent reconvening is given either:
(1) As an oral announcement by the presiding member of the body conducting the hearing, during a properly convened session of the hearing being continued and reconvened; or
(2) By publication, and posting and mailing if required, as if no prior notice of the public hearing had been given.