date format tht will help you out,

DateTime dateTime = DateTime.Now;
  C.WriteLine ("d = {0:d}", dateTime );  // mm/dd/yyyy
  C.WriteLine ("D = {0:D}", dateTime );  // month dd, yyyy
  C.WriteLine ("f = {0:f}", dateTime );  // day, month dd, yyyy hh:mm 
  C.WriteLine ("F = {0:F}", dateTime );  // day, month dd, yyyy HH:mm:ss AM/PM 
  C.WriteLine ("g = {0:g}", dateTime );  // mm/dd/yyyy HH:mm
  C.WriteLine ("G = {0:G}", dateTime );  // mm/dd/yyyy hh:mm:ss
  C.WriteLine ("M = {0:M}", dateTime );  // month dd
  C.WriteLine ("R = {0:R}", dateTime );  // ddd Month yyyy hh:mm:ss GMT
  C.WriteLine ("s = {0:s}", dateTime );  // yyyy-mm-dd hh:mm:ss (Sortable)
  C.WriteLine ("t = {0:t}", dateTime );  // hh:mm AM/PM
  C.WriteLine ("T = {0:T}", dateTime );  // hh:mm:ss AM/PM