Michigan Administrative Code
Department - Civil Rights
Civil Rights Commission
Organization, Practice, and Procedure
Section R. 37.28 - Method for calculation of days

(1) All time is measured in days unless another rule specifically provides a different method.

(2) When counting the number of days, Saturdays, Sundays, and state holidays must be included, subject to subrule (4) of this rule.

(3) "Day 1," the first day for counting, is the day after the event.

(4) When counting the number of days, the last day of the counting period is included, unless it is a Saturday, Sunday, state holiday, or other day when state offices are closed, in which cases the last day becomes the next day state offices are open for business.