UsingIT PHP Web Calendar is a PHP web application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar. It supports multi-user and groups. The calendar can be displayed by days, weeks, months or years. Multiple user's calendar can be viewed at the same time, one or more user's calendar can be displayed on the same page via layers. It can also be accessed as public calendar by anonymous users as well as adding new events. Events can be searched. User-configurable preferences for colors, 12/24 time format, week start on Sun or Mon, default work hours. Checks for scheduling conflicts. Support for multiple timezones. Users can accept or reject events added by another user to their calendar. Support for 30 different languages. Exporting to and importing from Palm Pilot, iCal and vCal. Authentication using LDAP, HTTP authentication, NIS or web-based. MySQL is required to run this application.