(1) A reference in this Act to the anniversary of the birth of a person shall be read as a reference to the day on which the anniversary occurs, and a reference in this Act to the anniversary of the birth of a person last preceding a particular day shall, where the person is or has been an eligible employee and that anniversary occurred before his or her first day of service, be read as a reference to his or her first day of service.
(2) Where a person was born on 29 February in any year, then, in any subsequent year that is not a leap year, the anniversary of the birth of the person shall be deemed to occur on 1 March of that subsequent year.
(3) For the purposes of this Act, a person shall be taken to have attained a particular age on the day immediately preceding the relevant anniversary of his or her birth.