PUBLIC MARKS with tags calendrier & open-source

Chandler 0.6 delivers an experimentally usable calendar for individuals and small workgroups. It is a test release for collecting feedback based on real usage. In addition to basic calendaring, advanced features include: recurring events; time-zones; overlayed, multiple calendars; and managing a single event across calendars.

Rainlendar is a customizable calendar that displays the current month. It is a very lightweight application that doesn't use much system resources or take much space on your desktop.