is time absolute?

Question

tell me whether time is absolute or instable

Answer 1

No, the rate of passage of time is slowed by acceleration and by gravitational fields.

Answer 2

No, time ticks more slowly with increased energy.

In other words, a speeding object experiences slower moving time than a still object. Similarly, an object with stored energy experiences slower moving time than a still object.

Additionally, even a still object will have time that ticks more slowly if it is in close proximity to another very massive or very energetic object.

In other words, there is one single spacetime that is four dimensional in which everything sits.

*) A still object is always traveling through the fourth dimension (i.e., the time dimension) of that spacetime. As that object speeds up, it shifts motion from moving in the time dimension to movement in a spatial dimension. This shift is what causes time to move more slowly.

*) If that object or another object is massive or has a high amount of energy, it will cause the surrounding spacetime to curve/stretch. This will force other objects to travel through time more slowly than they would without the presence of those objects. These new objects (including the original massive object causing the deflection) will have time that ticks more slowly than objects far away that are in spacetime that is not stretched.

So time is not absolute. Different people experience different time. However, we all sit in the same spacetime. We just experience time differently because we all head in different directions through it.

Answer 3

as an object approaches the speed of light, measurable time slows down.

Even synchronized clocks on the space shuttle come back a few fractions of a second behind after traveling at high speeds for a couple weeks.

Answer 4

Yes. Unless you've injested some mind-altering chemicals.