How to disable UTC offset without redhat-config-date?

["Bruno Negrao" <redhat engepel com br>]

Hi,
I'm running redhat 8.0. I set i to use GMT -3 as UTC offset but I don't want
it anymore since my smtp server is changing the time of its received
messages (it is subtracting 3 hours and writing the modified time in the
messages headers).

To stop this behaviour, I would like to disable this GMT -3 from my system.
How can I do this wihout runing the tool redhat-config-date? (this tool is
not running properly here)

When I issue the "date" command, it returns:
Fri Nov 29 19:13:28 GMT-3 2002

Thank you,
-------------------------------------------------
 -- Bruno Negrão -- Suporte
 -- Plugway Acesso Internet Ltda.
 -- (31)34812311
 -- bnegrao plugway com br