Spending one day in space is not equal to spending one day on earth. Why and what causes the difference?

Answer 1

My guess is that on earth we count our days by the rising and setting of the sun. Out in deep space, away from the sun, how would you measure a day?
How would you measure time?
The only way earthlings know how to measure this is with the sun.
Spooky isn't it?

Answer 2

In ancient time, there is no one day or one night. People defined one day and one night because of the rising of sun and falling of sun. So if you are in space, you are still witnessing the day and night, just that its happening on earth but you din realise it only.

So now you are in space and you can see the sun, So you wont witness day and night, but if time is valid in space, then it will still be clicking away. But time is also created by people to justify day and night, in actual fact, there is no clock that define the REAL time in the universe.

In space, you seems to age slowly, is all due to the environment surrounding you. Take an example, in the past, people can live up to 100 over years old, why people cannot now? Its because of the enviornment that change, that cause people's body to degrade faster, and we die younger.

In space, there are almost no negative elements or bad things in them, negative effects to your body, so you start to age slowly at space. you will just look and feel younger, but the clock is still ticking in earth. :)

Answer 3

The length of a day is dictated by Earth rotating, if your in space, your not rotating on the planet and therefore, you are not having an Earth day.