The Calendar is available to view by Day, Week or Month. It will display Tasks and Milestones relating to Projects. It will show in Green the Start Date of the Task and Red the finish date. If a Task is set to Start and finish on the same date, it will show in Red.
How do I update a Task Date?
You can drag a start of finish fate to a new date within the calendar, this will also update the task date within the project.
The Calendar colors can be customised in Admin Dashboard > Settings.