Challenging our concepts of TIME.

Evolution has recently described as a river that breaks off into streams that always return to the main water source...the river of evolution. This is the idea backing my reality test. Image time as being a river, picking up rocks, sand and debris as it continues to flow. I image this river feeding into a vast ocean of time. What happens on Earth during the water cycle that we were all taught in physical science? Water evaporates and condenses forming clouds that returns eventually returns to the waters source as rain or snow (stored time?). Does time do the same? Please leave your thoughts.