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 single person


• A schedule management system for a group of people, allowing one or more assistants to manage the calendar of another user


• An events schedule that anyone can view, allowing visitors to submit new events


• A calendar server that can be viewed with iCal-compliant calendar applications like Mozilla Sunbird,


• Apple iCal or GNOME Evolution or RSS-enabled applications like Firefox, Thunderbird, RSSOwl, or FeedDemon, or BlogExpress.

Features

• xhtml/css compliance


• Multi-user support


• 30 supported languages: Basque, Bulgarian, Chinese-Big5, Chinese-GB2312, Czech, Danish, Dutch, English-US, Estonian, Finnish, French, Galician, German, Greek, Holo-Big5, Hungarian, Icelandic, Italian, Japanese, Korean, Norwegian, Polish, Portuguese_BR, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish, Welsh


• Auto-detect user's language preference from browser settings


• View calendars by day, week, month or year


• View another user's calendar


• View one or more users' calendar via layers on top of your own calendar


• Add/Edit/Delete users


• Add/Edit/Delete events


• Repeating events including support for overriding or deleting (exceptions)


• Configurable custom event fields


• User-configurable preferences for colors, 12/24 time format, Sun/Mon week start


• Online help


• Checks for scheduling conflicts


• Email reminders for upcoming events


• Email notifications for new/updated/deleted events


• Export events to iCal, vCal or Palm


• Import from iCal, vCal or Palm


• Optional general access (no login required) to allow calendar to be viewed by people without a login (useful for event calendars)


• Users can make their calendar available publicly to anyone with an iCal-compliant calendar program (such as Apple's iCal, Mozilla Calendar or Sunbird)


• Publishing of free/busy schedules (part of the iCal standard)


• RSS support that puts a user's calendar into RSS (WebCalendar 1.1+)


• User authentication: Web-based, HTTP, LDAP or NIS