Rule 20 - Computation and extension of time(a)Computation of Time. In computing any period of time prescribed by these rules, by an order of the Supreme Court, or by any applicable statute, the day of the act, event, or default after which the designated period of time begins to run is not to be included. The last day of the period is to be included, unless it is a Saturday, Sunday, or a legal holiday, in which event the period runs until the end of the next day which is neither a Saturday, Sunday, nor a holiday.(b)Enlargement. Except as otherwise provided in subsection (c) or in these rules, when by these rules or by order of the Supreme Court an act is required or allowed to be done at or within a specified time, the Supreme Court clerk's office may, upon motion, grant one (1) thirty (30) day extension. Thereafter, the Clerk of the Supreme Court may, upon motion, grant an additional thirty (30) day extension, or two (2) additional thirty (30) day extensions in criminal cases, unless an objection is filed within seven (7) days of filing of the motion to extend, in which case the motion shall be resolved by the Supreme Court. No further extensions shall be granted unless authorized by order of the Supreme Court for good cause shown. However, the Supreme Court may not extend the time for filing a notice of appeal. This subsection shall not apply to petitions for reargument pursuant to Rule 25 or to orders of civil certification from District Court.(c)Enlargement in Criminal Cases in Which Full Briefing is Ordered. When any party in a criminal case believes in good faith that more than three (3) requests for extension of time will be required in any matter in which full briefing is ordered, the parties, on motion after consultation, may establish a briefing schedule in advance, subject to approval by the Supreme Court.(d)Additional Time after Electronic Service or Service by Mail. Whenever a party has the right or is required to do some act or take some proceedings within a prescribed period after service of a notice or other paper upon the party, and the notice or paper is served upon the party electronically or by mail, one (1) day shall be added to the prescribed period.Amended effective 6/19/2020; amended effective 12/10/2020; Revised 10/1/2023.