Light does not technically "time travel" in the way we usually think of it. However, the behavior of light and its relationship to time can be quite intriguing.
In the theory of special relativity, developed by Albert Einstein, the speed of light in a vacuum is considered to be the ultimate speed limit of the universe. This speed, denoted by the symbol "c," is approximately 299,792,458 meters per second.
One of the consequences of special relativity is that time dilation occurs when an object is moving relative to an observer. As an object's velocity approaches the speed of light, time slows down for that object relative to a stationary observer.
From the perspective of light itself, no time passes. When light is emitted, it travels at the speed of light, and from its perspective, it instantaneously arrives at its destination. However, from the perspective of an observer, time does pass as they measure the time it takes for light to travel from one point to another.
It's important to note that while light appears to travel through space, it does not experience time in the same way we do. Light is always moving at the speed of light, and from its frame of reference, there is no concept of "before" or "after."
So, while the speed of light has fascinating implications for time and relativity, it is not accurate to say that light itself engages in time travel as we typically understand it.