GUI for setting timezone

[Robert Moskowitz]

For the longest time, I used system-config-date for setting my timezone, 
as I travel a lot.

Recently I jumped from Fedora 24 to F28 and system-config-date is no 
longer supplied.  And I find out it is also not in F25, so I assume it 
was dropped for quite a while.

Bad for me.  And others that do move timezones.

Is there anything equivalent in Xfce?  The clock app can set what 
timezone it wants to show through a text block (no nice world map), but 
this does not update the system timezone from what I have seen.