your locale on your site isn't pulling properly. I'd check the settings in General and check your Timezone select box. I'm betting that's not set to the right zone so i guess WP defaults to a en?? it should do en_us as WP handles all locales as 5char unless it's like japan.
Couple things which have nothign to do with my plugin or this issue but heads up::
1. You have duplicate meta content type tags... so some plugin is adding in another one
2. Your site load time is pretty slow... about 7 seconds or more with 145 requests. Check out the report here: http://tools.pingdom.com/fpt/BDeN6Wu1B/http://www.principledpolicy.com/