Enforcement Rules of the Government Procurement Act Article 27

In paragraph 1 of Article 28 of the Act, the term "date of publishing a notice" means the date of publishing the notice on the Government Procurement Gazette; the term "date of inviting suppliers to tender" means the date of issuing a notice inviting the qualified suppliers to tender.
中文原文 政府採購法施行細則第27條
本法第二十八條第一項所稱公告日,指刊登於政府採購公報之日;邀標日,指發出通知邀請符合資格之廠商投標之日。

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