cDateFunctions

Source code of DLL files will be in another repository.

This repository also have Wiki with examples for some functions.

You can read more about their performance and capabilities in Wolfram Community Post.

How to use this Package:

• For the normal cDateFunctions (those that were written in pure wolfram-language), download and run cDateFunctions.wl
• For the Functions use LibraryLink, you'll need Main DLL File and Interface DLL File and Library File
  • In Mathematica, you should set the DLL paths before running the Library File:

    cDateFunctions`LibraryLink`Path`DLL (* set to Main DLL File Path *);
    cDateFunctions`LibraryLink`Path`InterfaceDLL (* set to Interface DLL File Path *);
    

  • Run Library File.

Availabe methods for Calendars:

ArithmeticPersian

Method Name	Author	Pattern Duration
"Cycle-33"	Omar Khayyam	33
"Cycle-128"	Hassan Taghi Zade	128
"Cycle-2820-1"	Zabih Allah Behrouz	2820
"Cycle-2820-2"	Musa Akrami	2820
"Cycle-4166"	Ahmad Farmad	4166

Source : www.magiran.com/paper/2219482?lang=en

Islamic

Method Name	Leap Years
"15-Based"	2, 5, 7, 10, 13, 15, 18, 21, 24, 26, 29
"16-Based"	2, 5, 7, 10, 13, 16, 18, 21, 24, 26, 29
"Indian"	2, 5, 8, 10, 13, 16, 19, 21, 24, 27, 29
"Habash al-Hasib"	2, 5, 8, 11, 13, 16, 19, 21, 24, 27, 30

Arithmetic Persian Leap Cycles Visualization

You can read about their origins and inventors in www.magiran.com/paper/2219482?lang=en.