The Calendar view is accessible from the sidebar on any screen. It gives a visual representation of the Tasks you have permission to see. There is an option to show Sub-Tasks, apply and save varied filters, as well as toggle different Calendar views.
The Calendar view shows you a count of tasks that start, are ongoing, or are due, on a particular date. This gives you an overview of task progress whilst also letting you click into an individual day to view it in greater detail.
Click on any task or sub-task to view it in greater detail.
There is also a Calendar View available in the Readiness module.