Thanks Mark. That option and the entire drop down menu was obscured and inaccessible by an orange backgrounded notice telling me "Your time zone may have changed". It stuck around. I could not immediately find any way to satisfy its question - but until that happened the menu was not available by any known means. Eventually, my cursor must have run over a magic invisible spot on the screen and an option to set a new time zone appeared. Then, the menu symbol, which when clicked reveals the menu with "search" and other valuable options, appears.