(1) A period of parent's leave shall, subject to sections 11 to 14, commence on such day as a relevant parent selects in his or her relevant notification, being not earlier than such day as is specified in section 8(1), 8(2), 9(1), 9(2), 10(1), 10(2), 10(3), 10(4) or 10(5), as the case may be, and shall, subject to subsection (3) end -

(a) in the case of a child who is, or is to be, adopted, subject to subsection (4), not later than the expiration of the period of 2 years beginning on the day of placement, or

(b) in any other case, subject to subsection (5), not later than the day on which a child in respect of whom parent's leave is to be taken attains the age of 2 years.

(2) Where a relevant parent is employed under a contract of employment for a fixed-term and that term expires before the day which, apart from this subsection, would be the last day of his or her parent's leave, then -