Xfce4-timer-plugin is a simple plugin that lets the user run an alarm at a specified time or at the end of a specified countdown period.
Xfce4-timer-plugin documentation
See NEWS for details on changes and fixes made in the current release.
Xfce4-timer-plugin source code
Xfce4-timer-plugin archive or Xfce4-timer-plugin tags
From source code repository:
% cd xfce4-timer-plugin
% ./autogen.sh
% make
% make install
From release tarball:
% tar xf xfce4-timer-plugin-<version>.tar.bz2
% cd xfce4-timer-plugin-<version>
% ./configure
% make
% make install
Visit the reporting bugs page to view currently open bug reports and instructions on reporting new bugs or submitting bugfixes.