The timezone setting allows you to control the local time for your email system. This will be used with the Spam notifications and any timestamps that you see in the system.
Organisation selection and setting ownership
The drop down list is only valid if you administer multiple organisations. If you do administer multiple organisations ensure that the correct organisation is selected before you modify the setting.
The message displayed helps understand who has current ownership of the setting. You will be able to modify the setting regardless of who previously had ownership.