time travel

/T AY1 M T R AE0 V AH0 L/
noun
  1. 1

    Hypothetical or fictional travel to the past or the future, typically by means of a machine (a time machine) or a wormhole.

  2. 2

    The ability to access previous states of a database.

Source: https://en.wiktionary.org/wiki/time%20travel