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Calndars

iPhone, iPad, AppleWatch and macOS


Calendar Converter App – Convert Dates Between Calendar Systems


Calndars is a powerful calendar converter that lets you convert dates between different calendar systems such as Gregorian, Julian, Hebrew, and Islamic. Whether you need accurate historical dates or want to understand how calendar systems differ, Calndars provides a simple and reliable solution.


A calendar converter is a tool that allows you to convert a date from one calendar system to another. Different cultures and historical periods use different calendars, such as the Gregorian calendar, Julian calendar, Hebrew calendar, and Islamic calendar. Converting between these systems is essential for research, historical analysis, and international applications.


Features of Calndars

  • Available in 35 languages.
  • Build with the latest Apple technologies using SwiftUI
  • Available on iOS, iPadOS, AppleWatch and macOS
  • Has Widgets for quick access
  • Supports Shortcuts
  • VoiceOver
  • Dynamic text
  • Dark Mode
  • AppleScript through Shortcuts on macOS
  • The currently available calendars are: Buddhist, Chinese, Coptic, Ethiopic (Amete Alem), Ethiopic (Amete Mihret), Gregorian, Hebrew, Indian, Islamic Civil, Islamic Tabular, Islamic Umm Al Qura, Japanese, Persian and Taiwanese.


Why use a calendar converter?

Calendar conversion is useful in many situations. Historians use it to translate dates between old and modern systems. Genealogy researchers rely on it to interpret historical records. Developers and international teams use it to ensure date consistency across regions and cultures.


Calndars iOS - version
Calndars AppleWatch - version
Calndars iPad version
Calndars macOS - version

How to use the Calndars app

Set a calendar as favorite (star) means it wil move to the top list. You can reorder calendars the way you see fit. The favorite calendars are converted, the the other calendars not.

Up to 3 Favorite calendars can be shown in a Widget by selecting the 4 squares. Reorder the calendars, to change the order they will be displayed in the Widget.

Copy the date of a calendar by tapping on the copy-icon, or share all calendar with the action-button.

Calndars Widgets, Shortcuts, Siri

Widgets explained

There is a small, medium and large Widgets. The bigger Widgets show more info. What is show in the widget can be set in the app by selecting  the square icon.


Use the Shortcuts app to be productive with Calndars

The shortcuts app from Apple, is available on all Apple platforms. Calndrs has Shortcuts support, which means you can make a Shortcut for any date (as input) for a calendar, and convert it to another date. In the image above the shortcut gets input from somewhere else (AppleScript, another shortcuts...) and converts it to the Hebrew Calendar, after which it will copy it to the clipboard.


Use AppleScript (on macOS) to integrate calendar conversion in your flow

Because the Shortcuts App is scriptable, you can use AppleScript to use Calndars to convert dates. See the example below.

The script creates a date (25 Dec 2004) and tells the Shortcuts app to convert it to the Hebrew Calendar. The Hebrew calendar is set in the shoirtcut. The name of the shortcut is "Get date from Hebrew Calendar". The shortcut copies the text to the clipboard.

The script than opens the Notes app, creates a Note and set the body of the note to the contents of the clipboard.

tell application "Shortcuts Events"

      -- set theDate to current date

      set theDate to date "Saturday, 25 December 2004 at 00:00:00"

      run shortcut "Get date from Hebrew Calendar" with input theDate

end tell


tell application "Notes"

      activate --make sure Notes is running

      set theNote to make new note


      tell default account to tell folder "Notes"

            set body of theNote to the clipboard

      end tell

end tell

Calendars and their history

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