What types of calendar items have Time Zone information? Appointments? Meeting Requests? Reoccurring Appointments? Reoccurring Meeting Requests?

Q: What types of calendar items have Time Zone information?  Appointments? Meeting Requests? Reoccurring Appointments? Reoccurring Meeting Requests?
A: If you are using legacy (pre-2007) versions of Outlook, only recurring meetings and appointments have the time zone information in them, single-instance items do not.  It is included in all calendar items in Outlook 2007.