Initially AllDay shows an overview of the current year. To switch to a different year, two methods are possible
going to the previous or next year relative to the year that is currently shown
selecting a given year through the year selection dialog
click on the ' previous year' or ' next year' button in the toolbar or select ' Previous year' or 'Next year' from menu 'Navigate'
select 'Set year...' from menu ' Navigate'
enter the year to display and
press button 'OK'