Land Act Article 58

The period of the public announcements made according to Article 55 shall not be shorter than fifteen days.The period of the public announcements made according to Article 57 shall not be shorter than thirty days.
中文原文 土地法第58條
依第五十五條所為公告,不得少於十五日。
依第五十七條所為公告,不得少於三十日。

English translation for reference only; the Chinese text prevails. Not legal advice.