NetNewsWire, Atom And Dates

I’ve been trying to get the dates in my comments feed to show up correctly with all the right time zone stuff and so on, but even though I’m pretty certain the feed is reporting the right time and time zone, NetNewsWire seems convinced that the comment was made in the future. So can someone confirm for me that the date 2006-10-25T20:28:58+10:00 refers to 8:28pm (and 58 seconds) on the 25th of October 2006 in a time zone that is +10 hours from GMT. Thus if my time zone is also +10 hours from GMT the date should mean 8:28pm local time on the 25th of October 2006.

Why is it that NetNewsWire reports the entry’s date as the 26th of October 2006?

UPDATE: The actual feed has a plus character before the 10:00 as required by the RFC. Something along the chain in WordPress stripped it out. The feed validator says the feed is correct.

UPDATE 2: This is confirmed as a NetNewsWire bug. Sigh.