Plans, the best web calendar.
Users say:
In my searches for a web-based calendar solution, Plans came out as the best of breed. It has a great user-interface and features that make it easy for my users to administer. Unlike most other web calendars, it properly displays multi-day activities.


Contact

Questions and suggestions are welcome.

You can email the author to give straight-to-the-source feedback, or contribute icons, themes, or other stuff.

Notes about spelling and grammatical errors are especially welcome :)

The Google discussion group is where bug reports, installation questions, and feature requests should be posted.

The Plans page on Freshmeat has a mailing list, if you want to be notified automatically of new releases.