The 58th quadrennial US presidential elections are scheduled for 8 November.
The 45th President of the United States will be sworn into office at noon on 20 January, 2017 - the day outgoing President Barack Obama's term expires.
Here's a timeline of the presidential primary elections, caucuses, national conventions and debates in the run up to the grand finale.
1 February
Iowa caucus
9 February
New Hampshire
20 February
Nevada Democratic caucus
South Carolina Republicans caucus
23 February
Nevada Caucus Republicans caucus
27 February
South Carolina Democratic caucus
1 March
Alabama primary
Alaska Republican caucuses (Democrats caucus on 26 March)
American Samoa Democratic caucuses (Republicans vote on 22 March)
Arkansas primary
Colorado caucuses
Georgia primary
Massachusetts primary
Minnesota caucuses
Oklahoma primary
Tennessee primary
Texas primary
Vermont primary
Virginia primary
Wyoming Republican caucuses (Democrats caucus on 9 April)
3 March
Republican debate (Detroit)
5 March
Kansas caucuses
Kentucky Republican caucuses (Democratic primary on 17 May)
Louisiana primary
Maine Republican caucuses (Democrats caucus on 6 March)
Nebraska Democratic caucuses (Republicans vote on 10 May)
6 March
Democratic debate (Flint)
Maine Democratic caucuses (Republicans caucus on 5 March)
Puerto Rico Republican primary (Democrats caucus on 5 June)
8 March
Hawaii Republican caucuses (Democrats caucus on 26 March)
Idaho Republican primary (Democrats caucus on 22 March)
Michigan primary
Mississippi primary
9 March
Democratic debate (Miami)
10 March
Republican debate (Florida)
US Virgin Islands Republican caucuses (Democrats caucus on 4 June)
12 March
District of Columbia Republican convention (Democrats vote on 14 June)
Guam Republican convention (Democrats caucus on 7 May)
Northern Mariana Islands Democratic caucuses (Republicans caucus on 15 March)
15 March
Florida primary
Illinois primary
Missouri primary
North Carolina primary
Northern Mariana Islands Republican caucuses (Democrats caucus on 12 March)
Ohio primary
22 March
American Samoa Republican convention (Democrats caucus on 1 March)
Arizona primary
Idaho Democratic caucuses (Republicans vote on 8 March)
Utah caucuses
26 March
Alaska Democratic caucuses (Republicans caucus on 1 March)
Hawaii Democratic caucuses (Republicans caucus on 8 March)
Washington state Democratic caucuses (Republicans vote on 24 May)
1 April
North Dakota Republican convention (Democrats caucus on 7 June)
5 April
Wisconsin primary
9 April
Wyoming Democratic caucuses (Republicans caucus on 1 March)
19 April
New York primary
26 April
Connecticut primary
Delaware primary
Maryland primary
Pennsylvania primary
Rhode Island primary
3 May
Indiana primary
7 May
Guam Democratic caucuses (Republicans vote on 12 March)
10 May
Nebraska Republican primary (Democrats caucus on 5 March)
West Virginia primary
17 May
Kentucky Democratic primary (Republicans caucus on 5 March)
Oregon primary
24 May
Washington state Republican primary (Democrats caucus on 26 March)
4 June
US Virgin Islands Democratic caucuses (Republicans caucus on 10 March)
5 June
Puerto Rico Democratic caucuses (Republicans vote on 6 March)
7 June
California primary
Montana primary
New Jersey primary
New Mexico primary
North Dakota Democratic caucuses (Republicans caucus on 1 April)
South Dakota primary
14 June
District of Columbia Democratic primary (Republicans vote on 12 March)
18-21 July
Republican National Convention (Cleveland)
25-28 July
Democratic National Convention (Philadelphia)
26 September
Presidential debate (Wright State University in Dayton, Ohio)
4 October
Vice-presidential debate (Longwood University in Farmville, Virginia)
9 October
Presidential debate (Washington University, St Louis)
19 October
Presidential debate (University of Nevada, Las Vegas)
8 November
Election Day
20 January
- Sources: Wall Street Journal, The Associated PressThe swearing in of the 45th President of the United States.