Specify how the date picker will interpret 2 digit years. If you want to define how the server will interpret 2 digit years for this component, you must set the Switch year in the UX Properties, Other section.
The Switch year defines how a two digit year in a date is interpreted. Two digit years on or after the specified value will be interpreted as occuring in the 1900s. Two digit years before the specified Switch year will be interpreted as occuring in the 2000s.
It is recommended that you use four digit years rather than two digit years in your applications.
By default, all two digit years are interpted as occuring in the 2000s. You can change this behavior on the Web Application Server in the Web Project Properties:
From the Web Projects Control Panel, open the Project Properties.
Locate the Switch year property.
Set the switch year to the desired default and save your changes. Leave the Switch year blank in the Project Properties to interpret all two digit years as occuring in the 2000s.