Date format - C#

//system date
            DateTime date = DateTime.Now;
         
            Response.Write(date.ToLongDateString());          // display as  Friday, April 25, 2008
            Response.Write(date.ToShortDateString());         // display as  4/25/2008
            Response.Write(date.ToShortTimeString());        // display as 11:45
            Response.Write(date.ToLongTimeString());        // display as 14:57:37