Announcing this via Facebook post, Lori Matloff Goler, head of human resource at the company, said that the expanded benefit primarily affects new fathers and people in same-sex relationships outside the US. "I am proud to announce that we are extending our parental leave policy for full time employees to cover four months of paid baby leave for all new parents, no matter their gender or where in the world they live," she posted.

"Studies show that when working parents take time to be with their newborns, outcomes are better for the children and families," Zuckerberg had posted earlier, sparking a fury of responses and nearly 70,000 likes in just an hour from his nearly 42 million Facebook followers.

"Starting on January 1, 2016, all new dads and same-sex partners at Facebook will receive four months of paid leave to bond with a new baby, whether they are the primary caregiver or not," Goler announced. The leave can be taken at any point up to a year after the baby is born.

The Facebook CEO has not revealed when his daughter is due. He will be taking about half the four months of leave Facebook typically offered to new parents. Facebook policy allows him take another two months during the first year of his daughter's life. By comparison, Netflix allows up to a year, Google up to 18 weeks and Microsoft 12 weeks.