Date and time
Japanese Era Converter
Convert Gregorian dates from the Meiji era onward into Japanese era notation with era boundary dates handled correctly.
Result
令和 (Reiwa) year 8
2026 maps to 令和 (Reiwa) year 8.
Use the Japanese era table to compare years in a list.
Features of the Era Converter
Enter a Gregorian year to convert it into Japanese era notation from Meiji onward. For years when the era changed, such as 2019, the result shows both era names unless you specify the exact month and day.
Open detailed notes
When did Reiwa 1 begin?
Reiwa 1 began on May 1, 2019. Dates from January 1 through April 30, 2019 are Heisei 31, while dates from May 1 onward are Reiwa 1.
Heisei 31 and Reiwa 1 in 2019
Because the era changed during 2019, entering only the year shows both Heisei 31 and Reiwa 1. Enter the full date when checking certificates, records, or forms from an era transition year.
How to use it for documents
- Birth dates, contract dates, certificates, and official records may need exact era notation.
- If month and day are blank, the converter works at the year level and shows multiple era names for transition years.
- Use the Japanese era table when you want to compare many years at once.
Frequently asked questions
Which eras are supported?
The converter supports Meiji, Taisho, Showa, Heisei, and Reiwa. Dates before the Meiji era are not supported.
Can I convert with only the Gregorian year?
Yes. For years when the era changed, entering only the year shows multiple Japanese era labels. Enter the full date when exact notation matters.
Does it show first-year era notation?
Yes. The first year of each era is shown as the first year notation rather than simply year 1.
Can I check a year-by-year list?
Yes. Use the Japanese era table when you want to compare Gregorian years and Japanese era names in a list.