…l and thus time cannot change. The slightly longer and more technical answer is that moving in time implies a velocity in time which would have to be given as v = dt/dt = 1, which is nonsense. That is it. A time dimension would make motion impossible. Nothing can move in spacetime for this …
The Simple Reason that Nothing Can Move Faster than the Speed of Light
If you had spend about 5-30 minutes reading popularized explanations of the Theory of relativity, you would have known that velocity in time dimension is nowhere near nonsense.