appropriate licencemeans a licence authorising the person submitting himself for the test to drive a motor vehicle of a class included in the category in respect of which the test is to be taken which— a is either— i a driving licence;
bank holidaymeans a day to be observed as such under section 1 of and Schedule 1 to the Banking and Financial Dealings Act 1971).”
working daymeans a day other than a Saturday, Sunday, bank holiday, Christmas Day or Good Friday (and “bank holiday” means a day to be observed as such under section 1 of and Schedule 1 to the Banking and Financial Dealings Act 1971).”