Hi,

I was wondering if this is a defect - 

Prelude> import Data.Time.Calendar

Prelude Data.Time.Calendar> read "2011-10-10" :: Day

<interactive>:1:1:

    No instance for (Read Day)

      arising from a use of `read'

    Possible fix: add an instance declaration for (Read Day)

    In the expression: read "2011-10-10" :: Day

    In an equation for `it': it = read "2011-10-10" :: Day

Prelude Data.Time.Calendar> 

The documentation says that  Day has an instance for Read.

Regards,

Kashyap