To define a Date Field attribute:
On the Category page, click Date: Field in the Add Attribute drop-down list.
On the Add Attribute To page, type a name for the attribute in the Name field.
In the Rows section, do the following:
Click the name of the attribute after which you want the new attribute to appear on the Category page in the After drop-down list. Click <None> to set the attribute to appear first.
Select or clear the following check boxes:
On the Category page, to set a default value for the attribute, click a month, date, and year (and time, if applicable) in the appropriate drop-down lists.