Hi there
What I did to avoid jet lag going from UK to Oz was very similar but we had a stop over of 2 nights. I kept my watch on UK time. Got to Hong Kong at 8am their time which was something like 1am our time. Kept awake until about 3pm Hong Kong time then went to bed and got up when woke up (about 4.5 hours later). Went out for the evening in Hong Kong then went to bed about 10pm and got up next day and was adjusted to HK time. When arrived in Australia 3 days later was already in correct time zone. Had no problems with sleep or waking up in the night etc.
On way home to UK didn't work as well but didn't suffer too much jet lag. Best thing I found to do is have small sleeping sessions when you feel really tired until you can go to bed normal time and sleep all night.
Husband never got into the time zone although he did the same as me. He was about a month getting back to normal once we had returned to UK - MEN !!!
Les
