Time is real in as much as the speed of light is a constant factor. It travels at 186,000 miles a second. We know how far away other galaxies are by the number of light years their light has taken to reach us. That is still only a measurement.
Time does not exist per say but is a construct. Our perception of time as a humans is subjective. Our knowledge of time is objective. As for God - there are people on this board who claim he speaks to them. Why not ask them what He has to say?