TLDR; It doesn't fix jetlag but it might get you started on the right path one "day" cycle sooner. There isn't "one simple trick" and not have jet lag. Everyo

TLDR; It doesn't fix jetlag but it might get you started on the right path one "day" cycle sooner. There isn't "one simple trick" and not have jet lag. Everyone will have jetlag after going through a large time change. Your body can only accomodate so quickly depending on the magnitude of the change. IME people recover 0.5-2 hours of time change a day. So if you go through a change, it will take anywhere from 3-12 days to fully recover. You don't even realize it until you've been somewhere for a while and one day you wake up and realize you are fully rested for the first time in a week (even though the other days felt basically fine).