Time Zone Error While Installing Agent through OEM 13c

While installation of Agent (13.2.0.0.0) in IBM AIX (Power System 64 Bit) environment through OEM 13c, One may received below error.

Error:
A Supported timezone cannot be computed on the host. The Agent will be installed with a default timezone.

Recommendation:
Either Set the timezone in the environment and retry the installation or Execute emctl reset tz agent after installation and follow the instructions to change the timezone at the agent and the repository



As a solution workaround, I got below steps to solve above problem.

1) Install the agent directly and ignore the timezone prerequisite check warning.
2) After the agent is installed, set the TZ environment variable on the agent target host:
export TZ=<Time Zone>
2) Stop the agent:  <AgentHome>/core/12.1.0.1.0/bin/emctl stop agent
3) Reset agent timezone: <AgentHome>/core/12.1.0.1.0/bin/emctl resetTZ agent
4) Execute the instructions provided by the previous command output.
5) Start the agent: <AgentHome>/core/12.1.0.1.0/bin/emctl start agent

6) Discover the targets: <AgentHome>/core/12.1.0.1.0/bin/emctl config agent addInternaltargets

But After completing Agent Installation (Ignored the Timezone Prerequisite), We were able to get that host in our host list.

Only second step i.e. export TZ="Asia/Kolkata" executed and we were able to get statistics from host. Existing timezone of the server was "IST -05:30".

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