4007.6—Computation of time.
         The PBGC applies the rules in subpart D of  part 4000 of this chapter to compute any time period under this part. However, for purposes of determining the amount of a late payment interest charge under  § 4007.7 or of a late payment penalty charge under  § 4007.8, the rule in  § 4000.43(a) of this chapter governing periods ending on weekends or Federal holidays does not apply.