I came back to China for a holiday these days. On my Ubunbu 12.10, there are 2 times, one for Pacific Standard Time (PST), the other is for Beijing Time.
I selected Asia -> Shanghai now, but it used to be America -> Vancouver (when I installed this Ubuntu).
$ sudo dpkg-reconfigure tzdata
And the current Beijing Time is now 8 hours later than the time it should be, so does the PST time.
I'm just wondering if there is something else I can do to change both the location as well as the time/date ?