Issue OracleDBConsoleBO Service Windows not started (DEV an PRD)

Hello guys.

On May 1th was changed to the time zone of Venezuela UTC -04:30 to -04:00 in the Windows operating system servers BO changing from Caracas to La Paz.

In the DBconsole (Oracle Enteprise Manager) link show me the error: Agent unreachable. When i check the OracleDBConsoleBO service it´s not working

Applying various solutions of Oracle forums. The adjustment was made in the database with the following command:

- ALTER DATABASE SET TIME_ZONE = '-04:00';

and next command:

- emctl resetTZ agent
- emctl start dbconsole

The service OracleDBConsoleBO start fine, but when i login in the bwroser Oracle Enteprise Manager the service fails again.

I appreciated the tips o any help.

Regards.

Desirée C.