Era Converter

Main Functions
- Convert between the Gregorian calendar and the Japanese era.
- Use the search button to quickly check the Chinese zodiac, leap months, and dates of era changes.
- Easily access previous or following years with the +/- buttons.
- Long press on search results to copy.
- Supports parallel era names, such as those from the Nanboku-chō period. Both are displayed when converting from the Gregorian calendar.
- For years after Meiji 6, the leap month field displays leap years (*).