For curing jet lag, others have said similar things, but my strategy has always worked for me.

1) Sleep as much as you can on the plane (which for me is never much, I am too excited about the trip).

2) The day you arrive, stay up until the normal bedtime wherever you are. If you arrive at 7a, stay up and do NOT sleep until 10p. "First day" excitement always accomplishes this for me. If you arrive at 7p, go ahead and go to bed at 10p.

3) Don't worry if you wake up early the next day; sometimes it will happen. Take advantage of it to do an early-morning thing you would never otherwise do. Perhaps the sunrise somewhere. Or, I have enjoyed the Tokyo Tsukiji Fish Market at 4:30a for this very reason.

4) So this is Day 2 now -- again, stay up until normal bedtime. Do NOT sleep during the day no matter how tired you are.

Usually, I'm on local time when waking up Day 2. Sometimes it takes that extra day. But never more than that.