How to change timezone?

Hi, just installed orca in my iste, very new to this software but Orca is a great software anyway. But facing a couple problems now.

After I had created a few forum topics, I notice that all my time post is outdated, it shows Dec 31, 1969 18:00

How can I change to my local timezone?

Anyone can help? Been searching this solution a while ...

The timezone display is at http://www.internetwealthcreation.net/#group/Wordpress-Blog.htm

Thanks!

you need just to add 1 topic inside forum - and date will be corrected :)

Regards

Artur A

If you are unable to set your servers time zone, you can add this to your /inc/headers.inc php file, just be sure it is at the very top of the file (right after the <?):

@date_default_timezone_set ( 'identifier' );

The next step is to replace 'identifier' with your local timezone setting, here is the url for the identifiers:
List of TimeZones allowed by php

Follow through that list until you find yours, then add the code above with your identifier, example:

@date_default_timezone_set('Asia/Bangkok');

Would set the php date functions to Thailand (Asia) time.  Remember, this doesn't effect your servers logs, etc - but anything php uses (dolphin) will output in your correct timezone.

List of Time Zones
http://us3.php.net/manual/en/timezones.php

I hope this helps. Thanks to Topher for this information.

Stuart