Open Source C Business Software

PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages, individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry. PNotes.NET edition requires .NET framework 4 Client Profile

GReortes 3.5 is a Greek personal calendar and religious holidays application for Linux 64bit OSs written in C ! Tested successfully on many popular distributions ( Ubuntu , Debian, MX Linux, Arch, Linux Mint , EndeavourOs, Pop-OS, Zorin, Fedora, KDE Neon , Kubuntu etc.) Allows the user to keep a personal diary for which data can be searched anytime. Code : https://github.com/fanisatt/EORTOLOGIO-GR (See latest version 3.5) Details in Greek ....

A small utility to display fixed and movable feasts of the Greek calendar. Most UNIX, console only.

Pecaldays is a powerfull and portable calendar utility for Linux 64bit OSs. ! It is written in C language. Actually , I made it to support my PEDABA (Data Base) Linux application but , I think it will be usefull as a standalone utility too. You can search for any date you want from 01/01/001 a.C to 31/12/2500 A.C to find the corresponding day. You can also add or subtract number of days to a specific date. It is also possible to extend the Julian calendar (for information only about the corresponding day) beyond 15 October 1582 (official opening of the Gregorian calendar) because, many countries made the transition to the new calendar several years later.

Please see the much more powerful "Pedaba 2" (https://sourceforge.net/projects/pedaba-2/)