Because January 20 -- Inauguration Day -- falls on a Sunday this year, the official swearing-in will occur at the White House, attended by the president's family.
Following the swearing-in, he used his first address to defend the official results of the election - which gave him an overwhelming victory - and criticised Western powers' response to the disputed poll.
The Afghan and American dignitaries were attending the swearing-in ceremony of Afghan Local Police in Shinwar district in Nangarhar province, senior district official Zalmai Khan said.