Convert all calendar formats

Utilities

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Convert all calendar formats is a professional, user-friendly all-in-one calendar conversion tool for global users. It solves the hassle of mismatched and confusing multi-calendar dates, delivering fast, precise, and reliable one-click date conversion for daily use, scheduling, international communication, travel, and academic research. Whether you need to check traditional festivals, arrange schedules, or convert professional historical and religious dates, this app covers all your calendar conversion demands with stable and accurate performance. Supporting almost all mainstream global calendar systems, it includes Gregorian Calendar, Chinese Lunar Calendar with solar terms and traditional festivals, Julian Calendar, Islamic Hijri Calendar, Persian Calendar, Japanese Calendar, Korean Calendar, and more. It not only realizes mutual conversion between different calendars but also supports accurate identification of lunar birthdays, religious festivals, historical dates and special time nodes, far exceeding the limited functions of ordinary calendar tools. Powered by a professional and authoritative calendar algorithm database, the app accurately identifies leap years, leap months, solar term rules and unique festival calculation logic of each calendar system. It effectively avoids conversion errors, ensuring all converted dates and time nodes fully comply with official astronomical and calendar standards, providing trustworthy data for daily arrangement and professional scenarios. Featuring a clean, ad-free and intuitive interface, the app requires no complicated operations. You can complete accurate calendar conversion with one tap and view real-time clear results. It automatically saves conversion records for repeated query and use. All core functions support offline use, allowing you to convert various calendar dates stably and conveniently anytime and anywhere without network access. Ideal for students, researchers, international business practitioners, cross-border travelers and daily users, Convert all calendar formats perfectly combines comprehensiveness, accuracy and simplicity. Get rid of tedious manual date checking and enjoy effortless, instant multi-calendar conversion with this lightweight and practical calendar assistant.

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The developer, 宁 许, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location

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Information

Seller
宁 许
Size
16.9 MB
Category
Utilities
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
Simplified Chinese
Age Rating
4+
Copyright
© 1111
  • Developer Website
  • Privacy Policy

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