In my visual force page I have the following line that display date : 1/21/2010 9:37 PM

<apex:outputField value="{!invitation.Account_group__r.Submission_Due_Date__c}"/>

I want to display date as : Jan 21, 2010 9.37 PM pst

Do I have to convert to string in my controller and display parsed data in visual force page?

or

Is there any format that I can give in my style(css) that will display date in the format I want?

Thanks