Many frequent flyers stand by the fact that if you keep yourself hydrated and get plenty of rest the effects of jet lag should go within a few days. However, there are some other ways to stop Jet Lags effects and there are remedies to stop you getting it all together.
Grenoble to Yerbogachen jet lag information
Lets assume you left Grenoble at 9:00am. The flight takes approximately 7 hours 40 minutes so you would arrive in Yerbogachen at 9:12am Grenoble time which is in fact 3:12am Yerbogachen time.
Your body will be telling you that its 9:12am but actually its now 3:12am