Labor Standards Act Article 52

(Ⅰ)Where a female worker is required to breast-feed her baby of less than one year of age, the employer shall permit her to do so twice a day, each for thirty minutes, besides the break period set forth in Article 35.(Ⅱ)The breast feeding time referred to in the preceding Paragraph shall be deemed as working time.
中文原文 勞動基準法第52條
子女未滿一歲須女工親自哺乳者,於第三十五條規定之休息時間外,雇主應每日另給哺乳時間二次,每次以三十分鐘為度。
前項哺乳時間,視為工作時間。

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