[Zope] Data date type returned by ZSQL method

I am trying to format a date value that is returned by a ZSQL method but keep getting an error. I am using the same format string where I use ZopeTime <dtml-var ZopeTime fmt="%m/%d/%Y">. Yet when I try to use it for a timestamp field from PSQL I get the following error. Error Type: ValueError Error Value: unsupported format character 'm' (0x6d) It sounds like the value being returned isn't a true date type? Any clues?