Firewall Graphs with wrong time (GMT-3)

Firewall Graphs with wrong time (GMT-3)

I'm testing Opamanger (12.5.333) with sonicwall firewall. 
My problem is the time in graphs that not respect my time zone.
This is the Live Syslog Viewer example:

<134>  id=firewall time="2021-04-14 11:58:43 UTC" fw=192.168.10.1 ...

Inside Interface Graphs, the result dont apply my time zone GMT-3

Should be 08:42

I tried to upgrade java with tzupdater.jar but don't resolved.
This is a bug?