This is Perl module Acme::DateTime::Duration::Numeric. INSTALLATION Acme::DateTime::Duration::Numeric installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan Acme::DateTime::Duration::Numeric Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION Acme::DateTime::Duration::Numeric documentation is available as in POD. So you can do: % perldoc Acme::DateTime::Duration::Numeric to read the documentation online with your favorite pager. Tatsuhiko Miyagawa