Section 28.4 - Computation of time(a) To compute the number of days for filing under these rules, the first day shall be the day after the event from which the time period begins to run and the last day for filing shall be included in the computation. When the last day falls on a Saturday, Sunday or federal government holiday, then the filing deadline will be the next regular federal government workday.(b) Whenever a party has the right or is required to do some act within a prescribed period after the service of a notice or other paper upon them and the notice or paper is served by mail, five (5) days shall be added to the prescribed period. Only two (2) days shall be added when a document is served by express mail or other form of expedited delivery.(c) Except as otherwise provided by law, whenever an act is required or allowed to be done at or within a specified period of time, the time fixed or the period of time prescribed may for good cause be extended or shortened by the Board or administrative judge.(d) No written submission shall be accepted by the Clerk of the Board after 4 p.m., Monday through Friday.58 FR 61992, Nov. 23, 1993, as amended at 68 FR 69298 , Dec. 12, 2003