The only time I truly am able to adjust back to the U.S. Central Time after a trip to Asia is when I have returned to DFW via a more easterly transit point (RTW ticket basically). After concluding a business trip to Hong Kong or Singapur, I used to return to DFW either via Karachi, where my late Grandfather lived, or via London, where my late Mother lived, stoping off for a day or two. I have never had a problem w/ sleep traveling east but traveling west always screws up my internal clock.

This technique might work better with a more equidistant stop off point like Istanbul, Athens or Cairo than the cities I used to travel through.