Regulations Governing the Labeling of the Alcohol Products Article 10

The labeling of dates of alcohol products shall be in Chinese calendar or Gregorian calendar with specific day, month, and year. However, with regard to products with an expiration date of more than three months, the expiration date may be labeled with specific month and year only, and the period of validity shall be deemed as expired at the end of the said month.
中文原文 酒類標示管理辦法第10條
酒類日期之標示,應標明國曆或西曆之年月日。
但有效期限在三個月以上者,有效日期之標示方式得僅標明年月,並推定該有效期限至當月之月底。

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