Time Theories
Many people look at time as a linear experience moving in a straight line. Perhaps when you imagine time you think of a straight line and on the left is the past and on the right is the future. This however, is only one theory of time. Another theory is that everything which occurs past, present, and future happens at the same time. This can be represented as several lines being drawn on a piece of paper, one below the next.
I don't know how time occurs. In fact, I am inclined to believe that time doesn't actually exist. When you think about the idea of time it quickly becomes apparent that time is simply the movement of objects through space. We say that it is noon when the Sun is directly overhead. However, the Sun is directly overhead simply because of the position of the Earth in relation to the position of the Sun.