Click on this icon to display the list of public holidays.
The goal of this list is to show you immediately which weekday will be a certain date.
The top frame (not editable) displays variable dates for the current year (Easter, Labor Day, etc.)
The bottom frame (editable) displays fixed dates, like Christmas for example.
You can add to your own dates, such as an important birthday.
Click on Add.
Type the day, the month and the text correponding to this date.
Validate.
To know the days of the previous or next years, click on 
