To be pedantic, photons never accelerate. They only ever travel at one speed in one direction

And as they’re massless, photons do not experience time. Regardless of how far a photon travels, from its perspective the journey takes no time.

It also does not experience space, as the entire universe has been length contracted in its direction of motion into a 2d plane. It is simultaneously occupying every point along its path. So it doesn't need to experience time.

It also does not experience, as it lacks consciousness

I have no consciousness and I must experience