So what I assume you are talking about is the planet where 1 hour = 8 years. Time dilation due to gravity is actually a thing. Time is actually slower in space then in is on earth.
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Thats pretty neat. Thanks
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It is. You wouldn't really see the extremes like you would see in the movie in real life. Unless you actually landed on a planet orbiting a black hole. If you travelled to another planet it would have different length of days and years, but time you still run at the same rate.
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Relative to where you are/your self experience