Takes 3 days to recover from Jet Lag. You can practice and do all the movements, but it is 3 days...period. I have done this a few times. Failure to play against protocol, fails to make a team effort. They are probably on the way back tonight too. idiots.
The only thing that would make this different is making sure they have the exact same things going on in their schedule that is on their rotation plan. You cant fly that long without issues. I have flown the 9 hour flights. They kick your butt as you cant move around like a real human. And one more thing....atmosphere changes in a different side of the planet...unless you are a flat earther..which means you just went off the edge of the planet and need to find yourself again. LOL