This would actually greatly impact the theory of one type of “time travel” which is based on the theory of relativity. Which is: Since nothing can travel faster than light; If you are strapped into an object travelling 99.9% the speed of light for an extended period of time, during that time, the laws of nature will slow you down to a certain degree to keep you from moving faster than light, since nothing can be faster than light. And during that time that you are slowed down, everything else in the universe is happening and moving at the usual speed. So in essence, 5 minutes of your “slowed down” time can be 10 minutes in the rest of the world, since time for you is slower. Which means, at that rate, if you spend 20 years in that object traveling at that speed, and then leave the object, the rest of the world will have been in existence for 40 years. So you “traveled” 20 years into the future.
So, this new discovery would completely destroy that theory. Of course, that theory of “time travel” has never really been thought possible, anyway.