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What is required for time travel then?
You enter a black box, wait for time t, and leave the box, the time in the world has advanced by t+x with x>0. Is that time travel?
In science fiction stories, t is something like seconds to hours and x can be several years. With the ISS, t is something like one year and x is some milliseconds.Freezing something does not change time - it slows down chemical processes (but not nuclear decays and other stuff), but not the time itself.