Reiwa first day
Input
2019-05-01
Output
令和元年5月1日
Japanese Era Converter
Convert dates between Japanese era notation and Gregorian calendar dates for forms, documents, today's date, and quick checks.
Conversion tools
What it helps with
- Fill Japanese forms that ask for era years
- Check dates in Japanese documents
- Convert Reiwa or Heisei dates for sharing
How to use
- Use the today shortcut when you just need the current Japanese era date.
- Choose Gregorian to Japanese era, or Japanese era to Gregorian.
- Enter a date such as 2019-05-01 or 令和6年4月1日.
- Review the converted date and copy the result.
Examples
Heisei first day
Input
1989-01-08
Output
平成元年1月8日
Japanese era input
Input
令和6年4月1日
Output
2024-04-01
Good to know
- Supports modern eras only.
- Does not execute or validate anything beyond date conversion.
- Historical calendar differences before Meiji are not supported.
- Date interpretation uses the proleptic Gregorian calendar for simplicity.
FAQ
- Which eras are supported?
- Reiwa, Heisei, Showa, Taisho, and Meiji are supported.
- Does this validate historical calendar details?
- No. It uses the proleptic Gregorian calendar and does not model historical calendar changes before Meiji.
- Does it use an external API?
- No. The conversion is performed with built-in date logic in your browser.
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