This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Reading between the lines, it sounds like your question is really "how do I output the date value in format xxx?"
You may be confusing the date's value with its string representation, which are two different things. A Date (or practically any object, for that matter), can be represented as a string in an almost infinite number of ways. How you do that is controlled by a formatting class, as the other reply indicates. Hope this clarifies rather than obfuscates things.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com