Hi Zoran! thanks you very much.
Although there the "Time Offset" is not a real Timezone setting, but by editing it properly, now I can adjust the time appearance.
I mean, my timezone location is GMT+7, and by set the "time offset" = 5 everything is going to normal for my eyes.
Luckily there is a "Auto Detect" link that it solves my problem quickly.
Yeah, it first annoys me. But after a few trying, it is easy as it's looked like.
Thanks you !!!