Question

Which one is correct?

Fast-forward to 2009 when I was 12 years old.

Fast-forward to 2009 where I was 12 years old.

Answer 1

The correct answer is:
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[A]: "Fast-forward to 2009 when I was 12 years old."
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Note: The matter deals with "time" —not "place" — so the use of "when" is correct.

If the matter deals with "place" or "location" — the use of "where" would be correct.
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Answer 2

the first one is grammaticly correct