A new light therapy can speed up how quickly people adapt to a new time zone, reports Fortune.

Sleep researchers generally say that it takes the body one hour (or time zone) per day to adjust to the local time. But according to research released Monday inThe Journal of Clinical Investigation, Stanford researchers have found that exposing sleepers to an hour of short bursts of light (about one flash every ten seconds) made it possible for bodies to adjust two or three hours forward or backwards in a single day.