There is a famous example that describes two twins. One twin is placed on a rocket traveling at near the speed of light. The other twin is left on earth. The twin on the rocket would return to earth with a younger appearance than her sibling left on the planet. Some philosophers, though not all, think it an error to refer to the passage of time at all.
Time is a mere fourth dimension, or coordinate in space-time.
This is an exciting development for the traditional Christian. Christianity developed a unique view about cosmic history, and as a result about time. Many Christians, from Aquinas to Henry Morris, have felt that the amount of time that has passed since creation is evident from the witness of Scripture. First, Christianity said that the universe had a definite beginning. Few significant figures in the ancient world would have considered such an idea.