Code of Civil Procedure Article 440

An appeal from a judgment entered in the first instance must be filed within the peremptory period of twenty days following the service of such judgment. Notwithstanding, an appeal is also effective when taken after the judgment is announced or published and before it is served.
中文原文 民事訴訟法第440條
提起上訴,應於第一審判決送達後二十日之不變期間內為之。
但宣示或公告後送達前之上訴,亦有效力。

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