Setting the Time
 

At the footer of the forum, it shows

In the ACP>Options>Date and Time Options, it shows

How do I adjust the time at the footer ?

Enable Daylight Savings is set to No

Try joining as a guest, what does it shows in the footer?

It might be saved as GMT +8 for you before you changed it to GMT +7 for the Forum.

if that is the case for your username + all members then this SQL command will change it to GMT +7 for all your current members

don't forget to use the prefix in front of 'user' if your forum uses prefixes.
Always a good idea to Backup your table /database before you make such a change.

Cheers.

Or you can user set it in your usercp.

UserCP > Edit Options

If DST is currently on for your timezone, set it to Yes.

see attached pic;

it's Safari, Firefox and Opera
Only Firefox shows the correct time while Opera and Safari shows 1 hour ahead

I Just checked your site with: IE5.5, IE6, IE7, IE8, FF 2.x, FF 3.x, Safari & Opera

All are showing GMT +7

Problem is not with your board, check your browser settings.

Cheers.

thanks
how to I check Safari and Opera's settings?

Lol never heard of browser setting a website's time.....

lol

Safari still showing GMT+8 on the site ; I disabled all the extensions but still no go

I wonder whether it has anything to do with my Net connection

Never heard of your net connection setting time.

There are atleast maybe 2-5 places change your timezone.

Options > Date & Time > For guests and newly regiestered users
Edit options > Time Zone - For registered users

Others, i wouldn't know.