Enforcement Rules of the Labor Standards Act Article 22-3

Days off mentioned in Paragraph 1 and Sub-paragraphs 1 and 2, Paragraph 2 of Article 36 of the Act shall be calculated every seven calendar days. Except for adjustments made in accordance with Paragraphs 4 and 5 of Article 36, an employer shall not have workers work for more than six consecutive days.
中文原文 勞動基準法施行細則第22-3條
本法第三十六條第一項、第二項第一款及第二款所定之例假,以每七日為一週期,依曆計算。
雇主除依同條第四項及第五項規定調整者外,不得使勞工連續工作逾六日。

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