For anything traveling at or near the speed of light, time slows down, photon traveling at the speed of time imply that there is no time that elapses for them. Lets just think about that for a min… For us (conscious human beings) we see light traveling for eons before it reaches our eye but for the photon, this time is zero… it is absorbed the moment it is emitted… Now combined with the below result, a photon converts into matter giving it (electron and positron) mass and time. A timeless particle gives rise to one that now has the concept of time because electrons do not travel at the speed of photons.
Scientists discover how to turn light into matter after 80-year quest
Vikash Kodati' Blog 