Rule 3746-5-19 | Computation of time.
(A) In computing any period of time prescribed for filing and serving a document, the date of the underlying act or event from which the designated period of time begins to run shall not be included. The last day of the period so computed shall be included, unless it is a Saturday, Sunday, or legal holiday. When the time prescribed or allowed is less than seven days, intermediate Saturdays, Sundays, or legal holidays shall be excluded in the computation.
(B) Any request for an extension of time must be filed within the time allowed for the filing or serving of the document with the commission.