Federal law and regulations provide a period within which an action is required for
            a number of situations (e.g., the date on which a Modification must be delivered).
            SSA considers the period of limitation to end at the close of the calendar day established
            by the underlying rule. If the period ends on a Saturday, Sunday, legal holiday, or
            any other Federal non-work day, action taken on the next Federal business day will
            be deemed to be within the time limitation.
         
         NOTE SSA considers the close of the calendar day to occur at 12:00 am as determined by
            the State’s time zone, and in accordance with the relevant State’s rules relating
            to daylight saving time.