Use this wiki plugin shows a timeline view of a tracker, which can be used to display event schedules or gantt charts. The tracker needs to have a field title, a field summary, a field start, a field end, a text field (to group event together). The plugin can work on different scale: hour, day, month, year
Parameters
Plugin PluginTikiDocFromCode failed : Either the module, plugin, preferences, tracker field or prefsexport parameter must be set, but not two or more.