I guess it depends how you approach it. When we've been to
Disneyland we've really struggled. Even though it is only 4 hours difference, it is 4 hours the wrong way - 7am is really 3am

. We don't have a problem the other way around though.
So you will be about 6 hours out (Hawaii is 2 hours difference from us). You probably won't have too much problem coming here, just going home.
What we did when we went 1/2 way round the world (morning here is night there) was take homeopathic anti-jet lag pills. They seemed to work great

. And also stick to the rule of sleeping & eating local time. It seemed to work well. After over 24 hours travel we stayed up all day, had an early night and the next day woke up with no problems at all. Didn't feel any effects after that

.
We are going to do the same when we go to Florida - it's an 8 hour difference.
Tania