保质期计算：“天”与“月/年”的区别
Last modified on 2026-04-29
为商品设置保质期时：
1. 保质期按“天”计算
到期日期 = 生产日期 + X天
示例：1月1日生产，保质期30天，则于1月31日到期。
2. 保质期按“月”或“年”计算
到期日期 = X月/年后的“当天”，系统按自然月/自然年计算。
核心规则：不考虑每月具体天数（如2月只有28天）或闰年。
示例：1月1日生产，保质期1个月，则于2月1日到期。
系统学习
Kingdee Ailit
is an inventory management brand under
Kingdee Group.
It provides free inventory management,
warehouse management, entry and exit management, cash register system, and other functions. It is suitable for
wholesale and retail industries such as clothing and food, supporting membership management and multi-store
collaboration. More than 3 million merchants have upgraded from manual accounting to digital management through
Ailit.