The upshot is though that even with a GPS database, you can't tell whether the wielder of the GPS-equipped system would prefer Beijing or Xinjiang time in that vicinity; it depends on who the wielder is.
I am relieved to hear though from a later post that GPS manufacturers still provde for you to manually enter your desired time zone, (Xinjiang time still sadly an orphaned child of the digital world.) Luther
PS I would be happy to open the discussion of XJ time again, or likewise to accept any previous suggestion without further objection.