OEM

[oracle@redhat4 config]$ cd $ORACLE_HOME/redhat4.7_orcl/sysman/config

[oracle@redhat4 config]$ pwd
/u01/app/oracle/product/11.2.0/dbhome_1/redhat4.7_orcl/sysman/config
[oracle@redhat4 config]$ vi emd.properties

UploadMaxBytesXML=20M
omsRecvDir=/u01/app/oracle/product/11.2.0/dbhome_1/redhat4.7_orcl/sysman/recv
#agentTZRegion=PRC
agentTZRegion=Asia/Shanghai

[oracle@redhat4 config]$ cd ../../
[oracle@redhat4 redhat4.7_orcl]$ cd ..
[oracle@redhat4 dbhome_1]$ cd sysman
[oracle@redhat4 sysman]$ cd admin
[oracle@redhat4 admin]$ vi supportedtzs.lst

# Timezone regions with +08:00 standard offset from GMT
Asia/Chungking
Asia/Harbin
Asia/Hong_Kong
Asia/Irkutsk
Asia/Kashgar
Asia/Kuala_Lumpur
Asia/Kuching
Asia/Macao
Asia/Manila
Asia/Shanghai
Asia/Singapore
Asia/Taipei
Asia/Ujung_Pandang
Asia/Urumqi
Australia/Perth
Australia/West
Etc/GMT-8
Hongkong
PRC
ROC
Singapore

[oracle@redhat4 config]$ pwd
/u01/app/oracle/product/11.2.0/dbhome_1/redhat4.7_ora11g/sysman/config
[oracle@redhat4 config]$ vi emd.properties
UploadMaxBytesXML=20M
omsRecvDir=/u01/app/oracle/product/11.2.0/dbhome_1/redhat4.7_ora11g/sysman/recv
#agentTZRegion=PRC
agentTZRegion=Asia/Shanghai

==================================

emctl resetTZ agent.

[oracle@redhat4 config]$ export ORACLE_SID=orcl
[oracle@redhat4 config]$ emctl resetTZ agent
Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0
Copyright (c) 1996, 2009 Oracle Corporation.  All rights reserved.
Agent is running. Stop the agent and rerun the command.
[oracle@redhat4 config]$ export ORACLE_SID=ora11g
[oracle@redhat4 config]$ emctl resetTZ agent
Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0
Copyright (c) 1996, 2009 Oracle Corporation.  All rights reserved.
Agent is running. Stop the agent and rerun the command.