[Haskell-cafe] Help parsing dates and times

I am trying to parse various date and time formats using the parseTime function found in (GHC 6.6.1) Data.Time.Format. The one that is giving me trouble looks like this: 2008-06-26T11:00:00.000-07:00 Specifically, the time zone offset isn't covered by the format parameters given. I can almost parse it with this: %FT%X.000 But that doesn't take into account the "-07:00" bit. I'm sure this has been solved - can someone point me to the solution? Thanks in advance. Justin