[Haskell-cafe] Please help : Data.Time.Format parseTime

I am trying to convert data string to time: import Data.Time import Data.Time.Format import Locale ds = "10/11/2009 7:04:28 PM" t = parseTime defaultTimeLocale "%D %H:%M:%S %p" ds :: Maybe UTCTime and get "Nothing". What is wrong? Thanks ! Dmitri.