(A) In computing any period of time prescribed or allowed by this code, the day of the act, event or default 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, in which event the period runs until the end of the next day which is not a Saturday, Sunday or legal holiday. When the period of time prescribed or allowed is less than 14 days, intermediate Saturdays, Sundays or legal holidays shall be excluded in the computation.
(B) As used in this section LEGAL HOLIDAY means those days designated as a holiday by the President or Congress of the United States or designated by the laws of this State.