What is the format of the dtDue parameter when it comes to the XML API. On the UI, I can type in "tomorrow" and it gets converted to the proper date/time (obviously due to some javascript). On the XML API, I try "Feb 28, 2:00 PM" and it shows up as Feb 28, 2002, 5:00 PM. If I pass "2011-02-28T17:00:00-0700" it ends up as "Feb 28, 2011, 10 AM"
So what's the mystical format? I can't seem to find any docs on it.