According to the theory of special relativity, it is not possible for an object with mass to travel at the speed of light. As an object with mass approaches the speed of light, its energy and momentum increase without bound, requiring an infinite amount of energy to reach or exceed the speed of light. Therefore, we cannot directly discuss the experience of traveling at the speed of light.
However, let's consider the scenario of a hypothetical observer who is at rest relative to an object traveling very close to the speed of light. In this case, the observer's clocks would indeed be affected by the relative motion, resulting in time dilation.
From the perspective of the observer, time would appear to pass more slowly for the object traveling at high velocity compared to the observer's own reference frame. This means that the clocks on the moving object would appear to tick slower relative to the observer's clocks.
The degree of time dilation depends on the velocity of the moving object relative to the observer. As the velocity of the object approaches the speed of light, the time dilation effect becomes more significant. However, even if the object were to reach the speed of light, time would effectively stop for that object from the perspective of the observer.
It's important to note that this scenario is purely hypothetical, as no object with mass can actually achieve or exceed the speed of light. The theory of special relativity provides a framework to understand the consequences of such extreme scenarios, but it does not describe what would happen in reality for objects traveling at the speed of light.