## Does time have a speed?

Last night i was in my room thinking about time, and a few questions came to mind. Im 14 and tried asking my science teacher, but he could not answer them and suggested posting them on a website like this. List of questions:

It has been proven in tests that the faster you move, the slower time goes for you. As in if i were to travel going at the speed of light for say (and this is just an example, not accurate) 7.5 years away and 7.5 years back going the speed of light, when i arrive back it would have been 3000 years on earth, but only 15 years for me. So i was wondering why does this happen? So my first question is: Does time have a speed? In other words, is the reason for this happening because time has a defined speed and the faster you go the more you "match" the speed of time causing you to be ahead of still or less fast objects but still be behind time itself? I imagined it like this: 3 runners having a race. The finish line would be the end of the "race". The first racer would be regular still and slower objects. The second would be you going the speed of light. The third object would be time. Time is in the lead and always will be. But the faster you go, the less differnce between your time and times time. Just comment if you need me to explain this further, its not easy. This brings me to my second question. If time has a speed, that would mean its moving. If time was moving, that would mean it has energy. If it DOES in fact have energy, could we harness this seemingly infinite abundance of energy? For my last question/theory and also my most shaky and unsure one, it is that if time is energy, does that mean that time needs energy to happen? and does energy need time to happen? Or could time really just be non-existant. Could time just be energy doing work?

It would make my day if someone could answer these questions that have been bugging me for the whole day. Google dosnt seem to help much /:
 The best simple and qualitative explanation I've heard about this is to imagine that we are always traveling through space-time at the speed of light, $c$. That is, motion through both space and time has to add up to that number, so motion through space slows down your motion through time, and vice versa. Therefore, if you are traveling at the speed of light through space, you experience no time at all! This is what we believe to be true about objects that travel at the speed of light. But you don't want to think about time has having a speed; all objects have their own conceptions of time, and time itself is not really thought of as a separate entity, for exactly that reason. It sounds like a good way for you to get acquainted to this material is to read an introductory text to special relativity. You will have difficulties understanding the concepts involved if you try to learn it piecemeal.
 I dont really understand what your trying to explain but ill catch up on some special relativity books and it should make sense, thanks for the suggestion!

Recognitions:

## Does time have a speed?

To expand/clarify on what Dan said, Time is just a coordinate. Time doesn't move. You move through time as you move through space. When you are at rest, you move through time at rate c. When you travel through space as well, that rate changes.
 Well...time is relative depending on position of the observers.If you travel with a velocity close to that of light, the period of your clock would be longer than a reference clock(it would take more "time" for your clock to tick one second than the reference clock).well that is time dilation given by special theory of relativity.Regarding aging,i personally donot think time dilation would affect it at all.Aging occurs due to mutations(changes) in the genes,and they donot do so by looking at your clock...anyway that's my point of view...also i might be wrong.