Than vs then usage

This has been one question that has been striking my mind in recent times while going through various blogs and comments. The usage of “then” instead of “than” in many articles used to strike me as odd, but doing Google searches to clear up the grammatically correct usage didn’t turn up any results. However, I finally found an answer through a Lifehacker post which directs to a wikiHow page that clears up the issue. To put it simply, than is used to indicate comparison while then is to indicate time.