Date::Extract takes an arbitrary block of text, searches it for something that looks like a date string, and builds a DateTime object out of it. By design it will produce few false positives. This means it will not catch nearly everything that looks like a date string. So if you have the string "do homework for class 2019" it won't return a DateTime object with the year set to 2019.
WWW: http://search.cpan.org/dist/Date-Extract/
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