For all the purposes of FA97/Sch12 periods of account
straddling 26 November 1996 were split into two periods at that
date. The first deemed period ran from the beginning of the actual
period of account to 25 November 1996 and the second ran from 26
November 1996 to the end of the actual period of account. In the
limiting case of a period of account ending on 26 November 1996 the
second deemed period began at the start of that day and ended at
its close.