Time is merely the product of our minds.
Imagine a group of children who had been raised in a hermetically isolated situation without any language for time. They found a huge pendulum hung in their house, and every morning they started it swinging. The word time would not enter their language, and time had no reality apart from their habit of counting pendulum swings. Dimensions are merely directions of movement which can be measured . We can measure laterally and vertically to yield the three dimension of space.