Ariz. R. Sm. Cl. P. 3
Rule 3. Computing Time
These rules may require a party to take action within a specified number of days from an event. The day of the event is not counted. A party must include Saturdays, Sundays, and holidays when counting days, but if the last day to take action falls on a Saturday, Sunday, or holiday, the party has until the next business day to take that action. Unless otherwise specified, all time periods referenced in these rules are calendar days.