2. Fees in relation to service or intimation of a document, citation of a person or diligence which, of necessity, is executed outwith normal business hours shall be surcharged by the levying of an additional fee of–
(a)331/3 per cent of the fee specified in the Table of Fees, where it is executed on a week day between the hours of 5.00pm and 10.00pm; and
(b)75 per cent of the fee specified in the Table of Fees, where it is executed on a week day after 10.00pm or before 9.00am or on a Saturday, Sunday or a public holiday.