From 1 January 2010, employees of either sex will be entitled to additional optional maternity leave, if the father is on partial maternity leave when (i) the mother gives up her leave after 14 weeks; or (ii) if the father is not on partial maternity leave but applies for optional leave indicating the moment at which the mother is going to return to work. The length of the optional leave will increase gradually between 2010 and 2014 to reach a total of six weeks in cases where one child is born, and eight weeks in the case of two or more children being born at a time.