Minn. R. Juv. P. 31.01
Unless otherwise provided by statute or specific Minnesota Rules of Juvenile Procedure, the day of the act or event from which the designated period of time begins to run shall not be included. The last day of the period shall be included, unless it is a Saturday, a Sunday, a legal holiday, a day on which weather or other conditions result in the closing of the office of the court administrator of the court where the action is pending or where filing or service is either permitted or required to be made electronically, or a day on which unavailability of the computer system used by the court for electronic filing and service makes it impossible to accomplish service or filing, in which case the period runs until the end of the next day that is not one of the aforementioned days. When a period of time prescribed or allowed is three days or less, intermediate Saturdays, Sundays and legal holidays shall be excluded in the computation. As used in these rules, "legal holiday" includes New Year's Day, Martin Luther King's Birthday, Washington's and Lincoln's Birthday (Presidents' Day), Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, the day after Thanksgiving Day, Christmas Day, and any other day appointed as a holiday by the President or Congress of the United States or by the State, and a day that the United States Mail does not operate.
Minn. R. Juv. P. 31.01