I always napped after getting to the hotel. Your body needs it. Wake up with an espresso and a workout. Meet the crew for dinner and have a few beers (otherwise, what's the point exactly?) Back to the room. Melatonin. Crash. Breakfast buffet, more espresso. Fly home. Toss and turn in the Delta One seat. Give up and eat/watch a movie. Be a zombie for a day. Live the dream.
Now Asia. No way to tame that beast. The best description from fNWA types: A ten day trip is ten days awake punctuated by a series of 4-hr naps. Not that we do 10-day trips anymore. But when you're there during the day you're body is saying, "Dude, it's the middle of the night." And when it's night, "Dude, it's the middle of the day." Back side of the clock is right. Europe is much easier on the body.
Or do 4 legs/day and enjoy the airport Holiday Inn. There's something for everyone at a legacy.