I do know that TZDB in CentOS is messed up for Arizona which doesn’t follow the DST rules.
While exploring the GUI a bit further, I saw the time displayed under Time Groups. This time is always one hour ahead of my system and hardware time. So I have to set the time one hour behind. I must do this no matter what TZ I set. Common issue until DST kicks in (or out, depending upon how you see it).
(Edit) To answer one of your questions, on install I set the TZ as Phoenix. and
[quote]So what happens when you try to change the timezone from sysadmin?[/quote] That is the main problem. Stays at “Denver”
This test system is at work and is a bit problematic to open ports etc. But I can hang it a bit further on the outside. Time today will be an issue.