PlexGlobe is a set of tools for travelers and multilingual/multicultural users. It includes a world clock, a world calendar (Gregorian, Japanese, Hebrew, Islamic, Buddhist, etc.), a stop watch, a metric conversion tool, a date calculator, an NTP-based atomic clock, appointments/reminders, people search, sunrise/sunset and moonrise/moonset, prayer timings and adhan for Muslims, country information from the Library of Congress/CIA, weather information, currency conversion, flight times and distances, language translation, and city maps.
Webical is a Web application to view and edit multiple iCalendars. Its features include progressive enhancement, a plugin framework that can be used to enhance the GUI and the back end providers, pluggable authentication, and i18n. Dutch and English localizations are provided, and adding more locales is easy. You need a servlet container, such as Apache Tomcat, to run it.
Calendars for the Web provides a server based calendar and scheduling application. It allows unlimited users to share unlimted events per calendar. Calendars for the Web comes with a full-featured browser based interface, is completely customizable (sixteen different calendar view types), fully documented, and supports online administration.
The Meeting Request Scheduling and Booking System (MRSBS) allows a person to schedule a meeting with people who are not on the same (or any) calendaring system. The meeting host (or the host's delegate) prepares an invitation, specifying required and optional attendees, information about the meeting topic and duration, potential time slots, and potential locations. The invitation is sent to the invitees via email, and the invitees reply via a Web page with their availability. Once all replies have been received, MRSBS selects the best available time. Invitees are then notified with an RFC 2445 compliant iCalendar notification.