r3p you are correct with the 17 hr time zone change but that is because you cross the international dateline and go back a day. The 'actual' time zone change ,as far as the body clock is concerned, from Sydney is 7 hrs ahead ie 1200 Tuesday in SYD but 1900 Monday in LAX. Easily confused and one of the hardest things about flying to LA is working out the time.The other thing is staying awake.
