There is no difference in the installer for Xeams Community and Enterprise Edition. It will run as if you have purchased the Enterprise Edition for the first 30 days. It will then get converted to Community Edition unless a license is purchased.
I added -Duser.timezone=US/Pacific to the xeams.sh file in the jvm startup. This works unless I restart the server from inside the admin console. Then the time is off again. Is there a config somewhere that can be change?