Mass can not slow time.

[exnihiloest]

...
Well nasa did a test with a ship and found the ships time slowed, well in our case the mars and earth clock would have to still be the same, and if the ships clock slowed, then it had nothing to do with speed, it had to do with energy state.
...

It doesn't a matter. You can use either special relativity or general relativity to get the solution.

From the viewpoint of general relativity (that one I prefer), acceleration and gravity cannot be distinguished. Then the acceleration when the traveler starts, stops or comes back, causes the slowing of time (as the gravity does it also.) You can easily calculate the time shift at the arrival. I do it myself using only one spatial dimension and the Schwarzschild metric, tensor culculi are not even required. Surprisingly the time shift depends only on the "gravitational potential" (due to acceleration) and this potential depends on the distance at which accelerations (and decelerations) occur.

For a given time of travel, the distance depends on the speed. This is the link with special relativity which finds the same result as general relativity (see the classical calculus used in the twin pseudo-paradox).

My conclusion is that special relativity which deals with speeds, deals in fact with jumps from one inertial frame to another, ignoring the  underlying process of acceleration. Nevertheless it gives the correct results because in the underlying process, these jumps do not depend on the absolute acceleration but on potentials (path independant).

[brian334]

This conversation is getting completely DAUM.
Time does not have ANY physical properties,
therefore time can not do ANYTHING.

[spoondini]

This post has changed my entire outlook.

Instead of searching for sources of free energy, I will now embark on a quest to find additional sources of free time.  Currently I have little free time, would it break the laws of thermodynamics to rearrange/reprioritize my schedule and generate free time from nothing?

[onthecuttingedge2005]

This conversation is getting completely DAUM.
Time does not have ANY physical properties,
therefore time can not do ANYTHING.

Write a thesis on why you think time doesn't exist, apply it with math and known laws of physics and document your theory so the whole world can understand what you have to say. get it peer reviewed you that you might have that chance at the Nobel prize.

M.I.T has a few openings so here's your chance.

Jerry

[brian334]

Math and time are both abstract ideas.