S.R.
What we have done is to keep our daughters on Chicago time. The first day/night is a bit dicey, but basically what we do is try to schedule naps for say 2pm (basically the Chicago morning nap) and 6pm (equiv. to the PM nap) and bedtime around 11pm or midnight local time, at least for the first couple days (by the end of the trip our girls tend to sleep a bit earlier and wake a bit earlier as their bodies adjust to the daylight). Keep the room dark in the morning and hopefully baby will sleep until 11AM or noon. Kind of a bummer to be stuck indoors for so long, but the nice thing is being able to enjoy some nightlife for once with such a late bedtime. We have done this twice and it has worked really well. The best part is that the transition back to Chicago time is basically automatic. We would usually arrive late afternoon and just put our girls to bed around 6pm and they would sleep through the night. We found that they bounce back way faster than we do from the time difference!