Is the time passing?Then when it was started?and when it will be finished?

Answer 1

This is as much a question for philosphy/religion as for physics.

From the physics standpoint: time is a dimension. As with length, width and height, any object can be measured by its duration. The actual measurement system is, of course, invented, based on planetary revolution and rotation.

Time is also relative to velocity (thank you, Dr. Einstein). A photon experiences no time and neither would you if it were possible for you to travel at the speed of light. With respect to the rest of the universe, however, that photon has a measureable lifespan from the moment of its creation (in a star or a lightbulb) until it strikes something and is converted into some other form of energy.

If we assume that the Big Bang theory is correct, time started when the Omega Point exploded, releasing photons and elementary hydrogen particles. The currently most accepted version of what happened is that both the photons and matter rode gravity waves in the first few moments which allowed them to actually travel FASTER than the speed of light. (call this hyper-time) This may mean that, while the universe is some 20 billion light years across, it may not have taken 10+ billion years for it to spread out that much from the Omega Point. At some point in this journey, the photons began to lose energy in collisions and descended into the visible spectrum ('Let there be light'). Collisions between hydrogen particles began to create heavier elements within the first second or two. Eventually the intensity of the gravity waves fell off according to the inverse square law and matter stopped 'moving' faster than light (Things riding gravity waves don't actually move at all, the wave is a ripple in space/time. A mathematician from England described an FTL drive using this principle a few years back.) and time as we know it began.

Depending on your viewpoint -- and this is where philosophy/religion really come into the picture -- time may end when gravity overcomes the universe's expansion and everything falls back into the Omega Point. Or, the universe will keep on expanding and time will never end, although things will wind down after a few billion years as energy is radiated away and become unrecoverable (entropy, 2nd Law of Thermodynamics). Or, the God of the Christian Bible will restore the universe (I Peter 3:8-11). I don't know how other religions answer this question.

Answer 2

Yes, time is passing, it started 12.6 billion years ago at the big bang, we don't know it if will ever finish.

Answer 3

time was always on and always will be
its never going 2 end
yet extremely massive object could bend the space
causing it 2 speed up the time
the more massive the object the faster the time cause of more gravity
such as stars

Answer 4

i guess time is never going to end!!