[Plugin: jQuery Countdown Clock] Clock is off a few days

I’m using the countdown widget on http://desertcruzerscarclub.com and the timer is off by approx. 2+ days. My widget is currently set for a date of Sept. 10, 2011 and the widget insists that it is 3+ days away. Very wrong and I don’t know what I can do to fix it. Thanks.

http://ww.wp.xz.cn/extend/plugins/jquery-countdown-clock-widget/