37 CFR 350.5 - Time.
(a) Computation. To compute the due date for filing and serving any document or performing any other act directed by an order of the Copyright Royalty Judges or the Copyright Royalty Judges' rules:
(1) Exclude the day of the act, event, or default that begins the period.
(2) Exclude intermediate Saturdays, Sundays, and legal holidays when the period is less than 11 days, unless stated in calendar days.
(3) Include the last day of the period unless it is a Saturday, Sunday, legal holiday, or a day on which the weather or other conditions render the Copyright Royalty Board's office inaccessible.
(4) As used in this rule, “legal holiday” means the date designated for the observance of New Year's Day, Martin Luther King, Jr.'s Birthday, Presidents' Day, Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans' Day, Thanksgiving Day, Christmas Day, and any other day declared a holiday by the President or the Congress.
(b) Extensions. A party seeking an extension must do so by written motion. Prior to filing such a motion, a party must attempt to obtain consent from the other parties to the proceeding. An extension motion must state:
(1) The date on which the action or submission is due;
(2) The length of the extension sought;
(3) The date on which the action or submission would be due if the extension were allowed;
(4) The reason or reasons why there is good cause for the delay;
(5) The justification for the amount of additional time being sought; and
(6) The attempts that have been made to obtain consent from the other parties to the proceeding and the position of the other parties on the motion.