You can modify date values in Report Dataset Designer to specify how they are formatted in the layout of a report.
To format date values
In the development environment, on the Tools menu, choose Object Designer.
In Object Designer, choose Report, select a report that you want to modify, and then choose Design.
In Report Dataset Designer, in the Data Source field of a Column that contains a date, use the FORMAT Function (Code, Text) with the date. For example, instead of entering TODAY in the Data Source field, enter FORMAT(TODAY,0,4).
Use the parameters of the FORMAT function to specify the length and the exact format that you want for the date.
On the File menu, choose Save.
In the Save window, select the Compiled check box, and then choose the OK button.