Hi Roberta,
Do a search on this BB for "time/local.pm" and you'll find a bunch of previous questions on the same thing--some with answers.
Basically, you'll need to get a copy of the local.pm module and create a directory named Time in your CGI directory, then place the local.pm module in it.
You can download a copy of Perl off the Net. Visit http://www.cpan.org to start.