Just to be clear we will not be re-adding UTC+/-offsets. They were removed for a very good reason as they are incorrect, do not handle DST properly, and caused endless trouble especially with F2F sessions and scheduled reports. We may add some of the more commonly-used timezone abbreviations e.g. EST or CET.

But for now the region/city format is what should be used e.g. Pacific/Auckland, America/Chicago or Europe/Berlin