The World Clock

Here's a cool site. I've set up a clock that displays the times in all the cities we'll be in. It will give you a sense of when it's ok to call home.
Check it out:The World Clock

How do you beat jet lag? Take the two days before the trip as easy as you can - be packed and ready on the 18th, so you have no worries on the 20th. On the 20th, avoid caffeine and sleep as much as possible on the plane. Stay hydrated during the flight, too. When we arrive at 9:30 a.m. in Paris, force yourself to live on Paris time. Eat breakfast, stay outside (the sun will help) and don't let yourself fall asleep before 8 p.m. You'll wake up early, but jet lag will be no problem by the 22nd.