WebCalendar is a PHP-based calendar application that can be configured as a single-user calendar, a multi-user calendar for groups of users, or as an event calendar viewable by visitors.
WebCalendar can be setup in a variety of ways, such as...
* A schedule management system for a person
* A schedule management system for a group of people
* An events schedule that anyone can view
* A calendar server that can be viewed with iCalendar-compliant calendar applications