Time A

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Across
  1. 3. Seemingly contradictory situation in time travel
  2. 5. Device that measures time
  3. 6. Entrance to a passage through time
  4. 7. Time-traveling car in "Back to the Future"
  5. 9. Time period yet to come
Down
  1. 1. Time period that has already occurred
  2. 2. Theoretical tunnel connecting distant points in spacetime
  3. 4. Extinct reptile from a prehistoric era
  4. 5. Record of events in chronological order
  5. 8. A period of time marked by distinct characteristics