[lwf]

  > Translated to a human-readable timestamp, 54566975 
  becomes:
  > 
  > Friday, September 24, 1971 06:29:35 GMT

No, that's PDT :)

  $ TZ=UTC date --date=@54566975
  Fri 24 Sep 13:29:35 UTC 1971

[davidcollantes]

That's correct. Chris has it wrong in that blog entry.