The procedures shall provide that, in the computation of any period described in this subchapter
(2) the last day after such act, event, or default be included, unless
(A) such last day is a Saturday, a Sunday, or a legal holiday; or
(B) in the case of a filing of a paper at the Government Accountability Office or a Federal agency, such last day is a day on which weather or other conditions cause the closing of the Government Accountability Office or Federal agency, in which event the next day that is not a Saturday, Sunday, or legal holiday shall be included.