Whenever the speed of an object increases, the time for that object will slow down (time never freezes). Therefore — if any “earthly” object manage to reach the speed of light (which theoretically standing next to impossible) time will stop still for that particular object.
Thus, till now — there’s no “earthly” object (matter), managed to endure that law of physics. Especially if the particles (of the object) even more dense than light as the medium (And indeed, a day with your Lord is like a thousand years of those which you count | QS 22:47).
What even more interesting, the book mentioned even a greater force travels faster than the speed of light (The angels & the Rúh Gabriel ascend to Him in a Day the measure whereof is 50.000 years | QS 70:4). Whoaah, C’est La Vie! Off to sleep comrades *puff* 🙂