so, the light dont have sense of time?
time never stops... it is also many times explained by Stephen hawking that when any body travels with the speed of light the time start moving very slow...
It is kind of playing with words really. From the point of view of a photon (ie something going at the speed of light), any journey appears to take zero time. So from our point of view, we would see this as the photons time stopping.
According to Einstein, time is relative to the observer. In other words, if I were to fly a space ship at a significant percentage of the speed of light (above 90%), I would experience time at a much slower rate than someone standing on Earth. Time would not stop at any speed.
Amazing. Yes and No are both equally represented here. You should (and probably DO ) know that nothing with rest mass can travel at the speed of light. For massive particles (such as what we are made from) we can (theoretically) approach arbitrarily close to the speed of light, but never reach it. (Technologically, we do not have any way of doing that (at least, not yet).) So we would experience time behaving normally if we were traveling at 99.9999999999% of the speed of light. [ And actually, we ARE traveling that fast right now - relative to some reference frames. So, if you are asking about speeds close to c, then the answer is look around you, then you tell me.] For photons and other massless particles traveling AT the speed of light: No time passes. The space-time path they take has zero duration. This is speaking about in their reference frame. (If massless particles can be said to have a reference frame.) One quibble I have with your question is the use of the word stops. This implies that it was going at some point. This is wrong. And of course, light having a sense of time is just plain silly. Time does not exist for massless particles (which all travel at c). It doesn't stop.
You have received answers that says yes and some that says no. What will it be? Well, it all depends on how you see it. As explained before, time is relative to the observer. If you could move close to the speed of light, you won't feel a difference because there is no point of reference in the universe. But, relative to another observer, your time may be compressed. So, if you could move at the speed of light, relative to something else, that something else would appear to go through time instantly. It means that time stops for what you observe but not for you. For example, photons that move at the speed of light have no time reference as relative to you and, in a sense, you could say that time has stopped. Here is another example, if you move at almost the speed of light in a spaceship and you switch your headlights on, you will see its light ahead of you instantly (actually moving at the speed of light). But from an observer seeing you moving at nearly the speed of light, your headlight will appear to move very slowly ahead because, for that observer, nothing can move faster than the speed of light.
