why time is different in space?

 time is generally a flow of past , present and future . it flows like a water pathway.it is important to present past and future for time . when we go out of the world the path of time is not changed seriously but at some instances it will become very difficult to find the correct flow of time in space. so time is not a constant one it will change every time of the instances.in space the distance and travel would be very slower compared to earth . so that time variations are happening in space continously. 

space is completely different to calculate the time. in space actually time delation takes place.which would be rare concept of time.the time dilation concept was not an easy one to understand because it was related with paradox concepts and time travel concepts.if you go back on time then you can alter many things so that you cant time travel in future. so it will create a different timelapse or timeline and it would happen there.there are many timeline with parallel universe will run on its way. so altering something in future or past would not alter things in present . 

parallel universe theories are not an impossible but possible when we find the alternate universe . when time is difficult to handle , time cannot be changed by no one. altering any thing will alter the whole timeline and making it to not happen  . so time dilation would be a difficult concept to realise.possibilites would be different but realities are only significant.so time would be different in space compared to earth .

   
 if you research through space or time it will make you mad at finding what is after the universe and galaxy.