The one year grace period for federal habeas corpus petitioners whose conviction became final before the effective date of the Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA) is calculated by applying Federal Rule of Civil Procedure 6(a). Under rule 6(a), the day from which the period of time begins to run is not included in the calculation. The last day for timely filing was April 24, 1997, exactly one year from AEDPA’s effective date of April 24, 1996.