Great article from Independent Traveler.
I have put my kids to bed earlier or later depending on time zones. I also advise taking a walk outside and getting fresh air your first day there. If you need to nap, try to do that, but stay close to the destination’s schedule.
I also highly recommend staying hydrated. Drink water and juice. I suffer from migraines and jet lag is one thing that can set them off. You don’t want to have a headache with a jet-lagged baby. Remember the kiddos are suffering too, so be patient and take care of yourself so you can help the passenger next to you.