Timezone adjustment for IIS logs not working

[chocking]

I am new to Splunk and have installed v4.3.4 on a PC and am running searches on IIS logs copied from a server and stored on my local machine (for various reasons I have chosen not to set up a light forwarder on the server yet).

I am finding that the timestamps of the events are not being returned in my local timezone (UTC +11) but are being returned unchanged (UTC).

I tried editing the props.conf file under Splunk\etc\system\local using the following stanza for sourcetype:
[iis-2]
TZ=Australia/Melbourne
(obviously this is not the correct way to change it to the UTC +11 timezone but I was just trying to get any change to the timestamp)

However, this had no effect on the timezone returned by Splunk.
I've removed the stanza, still with no effect.
2012-10-08 08:22:33 (in IIS log)
2012-10-08 08:22:33 (in Splunk event list)

I've been through just about all the timezone questions and answers that I could find.
I presume I am missing something....can anyone suggest what it is? 🙂

[piebob]

chocking, when someone answers your question, please take the time to click the checkbox next to their response to accept the answer (and give them karma)

[chocking]

Thanks Skylasam_splunk!
That worked beautifully!
I hadn't attempted that because I had read that IIS logs were treated as UTC by default...looks like Splunk just needed a bit of a helping hand.

[skylasam_splunk · Accepted solution]

Take a look at - http://splunk-base.splunk.com/answers/43999/iis-ftp-log-timezone-problem - which contains the answer. Set TZ = UTC in /etc/system/local/props.conf