Open Source Java Calendar Software

Ever wanted to get rid of Outlook ? DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP gateway allowing users to use any mail client with Exchange and Office 365, even from the internet through Outlook Web Access on any platform, tested on MacOSX, Linux and Windows

Etar is an open-source material-designed calendar made for everyone.

The standard date and time classes prior to Java SE 8 are poor. By tackling this problem head-on, Joda-Time became the de facto standard date and time library for Java prior to Java SE 8. Note that from Java SE 8 onwards, users are asked to migrate to java.time (JSR-310) - a core part of the JDK which replaces this project. The design allows for multiple calendar systems, while still providing a simple API. The “default” calendar is the ISO8601 standard which is used by many other standards. The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic calendar systems are also included. Supporting classes include time zone, duration, format and parsing. Joda-Time provides a quality replacement for the Java date and time classes. Joda-Time is the de facto standard date and time library for Java prior to Java SE 8. Users are now asked to migrate to java.time (JSR-310).

A Java library for reading and writing iCalendar (*.ics) files.

JDavide (per gli amici JD) è un software gratuito per la gestione dello Studio Legale che aiuta l’avvocato nell’espletamento delle operazioni quotidiane. Funzionalità: pratiche, agenda, formulario, atti, parcellazione, rivalutazione, ecc.

openCRX moved to https://github.com/opencrx

The VCS to ICS Calendar Converter allows you to convert VCALENDAR files (for example generated by Nokia nbuexplorer or Microsoft Works) to the newer iCalendar format, used by Android and iOS for example. It allows the parsing of events and todo's.

BORG is a calendar and task tracking system written in Java. The calendar provides a nice month view, month-print, email reminders, popup reminders and to do list. The task tracker tracks issues through various states.

Zimbra is an open source server and client technology for next-generation enterprise messaging and collaboration. Please see www.zimbra.com for the latest news and downloads.

Cal is a command line utility that will output a calendar for the desired month/year. It's simple and accurate with a few useful features. By default, Cal will display the current year. You can provide a month and year, a month, or just a year. You can also change the number of calendars per row in your display with the -n switch. See the examples below for a more through description. This is a single executable JAR file. While you will need Java installed, there is no need to install this program. Just download the JAR file, please it somewhere convenient, and execute it from the command line: java -jar cal.jar The Homepage provides more detailed information and instructions. https://github.com/frossm/cal

neki++ is to be used with the Apple iPod nano and the Nike+ Sports Kit. It can read the data from the iPod and display and store it locally. Additional data can be added by the user. An evaluation and comparison of several runs is possible.

Open source derivatives trade processing.

The k5n Desktop Calendar (k5nCal) is a Java-based calendar application that leverages existing standards (iCalendar, WebDAV) to create an open source cross-platform multi-user desktop calendar application.

CentraView - Browser based Enterprise Java (J2EE) Contact Management, Groupware, Collaboration, CRM, SFA, Project Management software. Run locally or as a hosted service. Built on Apache Tomcat, JBoss, MySQL, Linux (Fedora, RedHat and others) & Windows

Amnesia is a reminder that allow to define alarms, stickers (post-its) for reminding you some important stuff, and notes about whatever you want. Alarms can be programmed to appear at a given time, stickers can be placed on desktop to view it anytime.

Platformunabhängiger Kalender zum Eintragen von Ereignissen mit Erinnerungsfunktion. Beinhaltet alle deutschen Feiertage. Zwischen den Ansichten Jahresansicht, Monatsansicht, Wochenansicht und Tagesansicht kann umgeschaltet werden. Der Kalender kann im Hintergrund laufen und ist personalisierbar. Automatische Erinnerungsfunktion für nahende Ereignisse / Feiertage. Synchronisation über einen FTP-Server möglich.

Bizcal is a component library for calendar widgets written in java using swing. It has components for day view, week view, month view, group view, etc.

HERO Planner – Unleash Your Scheduling Superpowers Is rostering your kryptonite? Transform chaos into control with HERO Planner, the command center for retail, hospitality, and service teams. This modern desktop app turns managers into scheduling superheroes—no cape required. Your Utility Belt: ✓ Super Speed: Intuitive drag-and-drop & bulk actions for lightning-fast updates. ✓ Compliance Shield: Real-time alerts guard against labour law violations and overtime risks. ✓ X-Ray Vision: Instantly visualize coverage gaps, conflicts, and staff availability. ✓ Universal Export: PDF, CSV, and HTML formats. ✓ Stealth Mode: Sleek Dark Mode & customizable themes. Built on Electron, React & Vite for blazing performance. Whether managing a small squad or a legion of 200+ staff, HERO Planner gives you the tools to save the day. Don't just manage the rota—be the Hero.

PANDA - Personal Assistant for Notes, Dates and Addresses. Panda is a tool for managing your notes, dates and addresses. Enter notes as simple text, keep addresses as plain fields and manage a time table as well as an elementary calendar.

Application for managing calendars. The main focus is a print function for printing month oder weekly overviews that can be pinned on a wall etc. Many sources of terms will be available, for example Google Calendar (already tested!), iCalendar or other f

Organize your activities with the help of this software. BSplanner is a simple, easy to use calendar application designed to lend you a hand when it comes to managing your daily or monthly activities.

Air France planning importation, processing, and exportation

The Java Calendar Tools project will contain open source components for use in Calendar applications. The focus will be on providing tools that are in compliance with existing standards like iCal (RFC 2445).

Open Project Services (OPS) is a project collaboration platform, integrating server components such as e-mail, calendaring, timesheets, documents, knowledge, etc. with standards complient clients. It consists of a project server and a set of client plugi

Periodic Calendar is a GUI application which assists in women menstrual cycles tracking and fertility periods prediction. Periodic Calendar provides support for BBT and sympto-thermal methods which have the highest reliability.