Disclaimer: The materials provided below are informational and should not be relied upon as legal advice.
Mr. Archer is correct. However, bear in mind that if you are serving your opposition papers by mail or overnight mail, your "deadline to serve" will be prior to this date. You should consult your own attorney to protect your legal rights.
The other responses are correct. If you plan to represent in federal court, there are some rules that favor pro se litigants, but you should immeidately download the applicable rules (linked below) so you can follow them.
Disclaimer: Please note that this answer does not constitute legal advice, and should not be relied on, since each state has different laws, each situation is fact specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents at issue. This answer does not create an attorney-client relationship.