This is Perl module DateTime::Span::Birthdate.

INSTALLATION

DateTime::Span::Birthdate installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan DateTime::Span::Birthdate

Download it, unpack it, then build it as per the usual:

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

DateTime::Span::Birthdate documentation is available as in POD. So you can do:

    % perldoc DateTime::Span::Birthdate

to read the documentation online with your favorite pager.

Tatsuhiko Miyagawa