Utah Code § 20A-1-104: Computation of time.

(1) Time is computed in this title as provided in this section.

(2) Except as provided in Subsection (3), or as otherwise expressly provided in this title:

(a) if a provision describes a time period in terms of a certain number of calendar days:

(i) the time period is calculated by consecutive days; and

(ii) the beginning and ending day of the time period is the calendar day on which the time period begins or ends;

(b) if a provision describes a time period in terms of a certain number of business days, only the business days are included in the calculation; and

(c) if a provision describes a time period in terms of a certain number of days rather than calendar days or business days, the days referred to mean calendar days.

(3) A time period that relates to filing an action or document in court is calculated as provided in court rule.

(4) Except in relation to the following chapters, if a deadline described in this title ends on a weekend or holiday, the deadline is extended to the next business day:

(a) Chapter 19, Utah Independent Redistricting Commission and Standards Act; and

(b) Chapter 20, Utah Independent Redistricting Commission.