Enforcement Act of the Code of Civil Procedure Article 6

In cases where a period fixed by the applicable law in accordance with the provisions of the Previous Code prior to the coming into force of the Amended Code has started to run, such period shall be governed by the Previous Code.
中文原文 民事訴訟法施行法第6條
修正民事訴訟法施行前,依舊法法定期間已進行者,其期間依舊法之所定。

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