Armed Forces Disciplinary Punishment Act Article 31

Grounding. The grounding shall be executed on weekends, leaves, or holidays and the related necessary education shall be conducted concerning military duty, barrack administration, and routine discipline. The days for grounding are no less than one day but more than ten days.
中文原文 陸海空軍懲罰法第31條
禁足,於例假、休假或放假日實施與軍事勤務、內部管理或生活紀律有關之必要教育;其期間為一日以上十日以下。

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