How to read the production date in Japan
When buying food, cosmetics or other goods in Japan, the way production dates are marked is different from that in China, and many consumers may be confused. This article will introduce in detail how to check the Japanese production date, and attach the hot topics and hot content on the entire network in the past 10 days to help everyone better understand and use it.
1. Common marking methods for production date in Japan

The production date in Japan is usually marked in the form of "year month day" or "year month of manufacture", the specific format may vary depending on the type of product. The following are several common labeling methods:
| Dimension type | Example | Description |
|---|---|---|
| year month day | October 15, 2023 | Directly mark the year, month and day, clear and easy to read |
| Manufacturing year and month | October 2023 | Only the year and month are marked, which is common for products with a long shelf life. |
| Year, month and day of the Western Yuan Dynasty | 20231015 | Label with numbers consecutively, paying attention to the order (year-month-day) |
| Japanese era name | October 15, 2015 | When using Japanese era names (such as Reiwa and Heisei), they need to be converted to the Western calendar |
2. Conversion method between Japanese era name and Western calendar
Japanese era names are Japan's unique way of counting years. Common era names include "Reiwa" (2019 to present), "Heisei" (1989-2019), etc. The following is a comparison table between the year number and the Western calendar:
| Year number | start year | Conversion formula |
|---|---|---|
| Reiwa | 2019 | Western calendar year = Reiwa year + 2018 |
| Heisei | 1989 | Western calendar year = Heian year + 1988 |
| Showa | 1926 | Western calendar year = Showa year + 1925 |
For example, the Western calendar year corresponding to "Reiwa 5th Year" is: 5 + 2018 = 2023.
3. Hot topics and content on the entire network in the past 10 days
The following are hot topics that have been highly discussed on the Internet recently, which may be related to Japanese consumption, culture or production date:
| hot topics | heat index | Related instructions |
|---|---|---|
| Controversy over Japanese nuclear wastewater discharge into the sea | ★★★★★ | Attracting global attention, some consumers are worried about the safety of Japanese food |
| Japan’s new tax-free shopping policy | ★★★★ | The tax-free threshold will be adjusted from October 2023 to attract tourists to spend |
| Controversy over the shelf life of Japanese cosmetics | ★★★ | Netizens discuss whether the production date marking of Japanese cosmetics is clear |
| New regulations for Japanese food imports | ★★★ | Many countries have strengthened testing of Japanese food, affecting the import process |
4. How to ensure that the Japanese products purchased are within the shelf life?
1.Look carefully at the packaging: The production date is usually printed on the outer packaging or bottle of the product. It may be marked in small characters, so you need to be patient to find it.
2.Ask the merchant: If purchasing online, you can confirm the production date and shelf life with customer service.
3.Use translation tools: When encountering Japanese annotations, mobile phone translation software can be used to assist in recognition.
4.Pay attention to imported product labels: Japanese products imported into China usually have Chinese labels indicating the production date and shelf life.
5. Summary
There are various ways to mark production dates in Japan, and consumers need to master the basic identification methods, especially the conversion of era numbers and the Western calendar. At the same time, recent hot topics such as nuclear wastewater discharge into the sea and new tax-free policies may affect purchasing decisions. It is recommended to pay attention to relevant information to ensure consumption safety. I hope this article can help you easily understand the Japanese production date and purchase products with confidence!
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