For the purposes of this Act—
in reckoning any period which is therein expressed to be a period from or before a given date, that date is to be excluded; and
in reckoning any period therein mentioned of 8 days or less which apart from this provision would include a Sunday, Christmas Day, Good Friday or a bank holiday, that day is to be excluded.
In this section "bank holiday" means a day which is a bank holiday under the Banking and Financial Dealings Act 1971.