Time in vacuum

[Guille]

If time is defined by gravity, and gravity varies by mass, and mass is in matter, then in vacuum space, time does not exist? or time in vacuum spaces have the REAL un-affected speed of time?

[Guille]

I really want to know, If I managed to be in a total 100% vacuum, a place were there is no gravity, matter, energy....would I travell at a difference speed in time than here? and if so, would it be slower or faster, or would time stop and don't exist? or, even more inportant, could I travell back in time If I were in a vacuum?

[AntonioLao]

the vacuum has infinite energy but by experiment only the zero-point energy is measureable. The infinite energy of the vacuum is uniformly distributed to such an extent that the universe appears smooth and flat (homogeneous and isotropic) in a way making the energy of expansion exactly equal to its gravitational energy. At the boundary of these two energies, the motion of time is zero.

[Guille]

Then,

But I can't realise this idea. If I enter a complete vacuum space, before, time didn't pass, but now that I am in it and obviously moving, time passes. So it's matter that makes time? or better said, energy?

[AntonioLao]

So it's matter that makes time? or better said, energy?

the convection currents of the vacuum scalar field made time, matter, as well as energy.