Scheduling problem in Calender

Hi everyone i am having a problem with the calendar app and outlook.

My problem is if i add a meeting on my iPhone from 8am to 9am when i sync with iTunes it will show up as 9am to 10am on outlook. However if i add a meeting on outlook from 8am to 9 am it will show up as 7am to 8am on my iPhone. Any ideas as this would be happening and how can i fix it? Just a bit of info as well i have an iPhone 4 running on iOS 4.3.1 on Windows 7

Thanks

 

BRILLIANT thanks so much worked like a charm. Thought it was a time zone error but i only changed it under Settings>General>Date&Time not in Settings>Mail,Contacts,Calendars>Time Zone Support didnt know this existed

thanks again