An overview of dates and times and how to handle them in Perl

The Many Dates and Times of Perl

You won't find a better introduction to the topic than this perl.com article called The Many Dates and Times of Perl. It covers date and time concepts, built-in Perl functions, and the many and varied Perl modules for dealing with the complexity of dates and times.

datetime.perl.org

Another good reference is datetime.perl.org, the home of the Perl datetime project.

See also

    perldoc -q date