Calendar Converter
Convert dates in 15 calendars
Only for Mac
Free
Mac
Calendar Converter is a simple app that uses macOS’s built-in capabilities to convert dates between different calendar systems, such as from the Gregorian calendar to the Japanese era calendar.
The following calendars are supported:
・Gregorian
・Buddhist
・Chinese (Sexagenary cycle)
・Coptic
・Ethiopic
・Ethiopic (Amete Alem)
・Hebrew
・Indian National
・Islamic (Astronomical)
・Islamic (Tabular, Friday origin)
・Islamic (Tabular, Thursday origin)
・Islamic (Umm al-Qura)
・Japanese
・Persian
・Republic of China
Ratings & Reviews
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・Internal code improvements
・User interface tweaks
・Fixed some bugs
The developer, Tranquillity Base, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YUJI MIMORI
- Size
- 2 MB
- Category
- Utilities
- Compatibility
Requires macOS 26.0 or later.
- Mac
Requires macOS 26.0 or later.
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2025 Yuji MIMORI