1 U.S.C. § 110

All acts of limitation, whether applicable to civil causes and proceedings, or to the prosecution of offenses, or for the recovery of penalties or forfeitures, embraced in the Revised Statutes and covered by the repeal contained therein, shall not be affected thereby, but all suits, proceedings, or prosecutions, whether civil or criminal, for causes arising, or acts done or committed prior to said repeal, may be commenced and prosecuted within the same time as if said repeal had not been made.