2016 Presidential Primary Poll Closing Times

The Green Papers
2016 Presidential Primary Poll Closing Times
Chronologically

	UTC	Eastern	Central	Mountain	Pacific	Alaska Hawaii	Atlantic Chamorro Samoa
Tuesday 9 February 2016
New Hampshire Democratic Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
New Hampshire Republican Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Saturday 20 February 2016
South Carolina Republican Primary	0000 UTC	7:00p EST	6:00p CST	5:00p MST	4:00p PST	3:00p AKST 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Saturday 27 February 2016
South Carolina Democratic Primary	0000 UTC	7:00p EST	6:00p CST	5:00p MST	4:00p PST	3:00p AKST 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Tuesday 1 March 2016
Georgia Democratic Primary	0000 UTC	7:00p EST	6:00p CST	5:00p MST	4:00p PST	3:00p AKST 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Georgia Republican Primary
Vermont Democratic Primary
Vermont Republican Primary
Virginia Democratic Primary
Virginia Republican Primary
Alabama Democratic Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Alabama Republican Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Massachusetts Democratic Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Massachusetts Republican Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Oklahoma Democratic Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Oklahoma Republican Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Tennessee Democratic Primary (EST, CST) ^*S	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Tennessee Republican Primary (EST, CST) ^*S	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Texas Democratic Primary (CST) ^*A	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Texas Republican Primary (CST) ^*A	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Arkansas Democratic Primary	0130 UTC	8:30p EST	7:30p CST	6:30p MST	5:30p PST	4:30p AKST 3:30p HAST	9:30p AST 11:30a ChST 2:30p SST
Arkansas Republican Primary	0130 UTC	8:30p EST	7:30p CST	6:30p MST	5:30p PST	4:30p AKST 3:30p HAST	9:30p AST 11:30a ChST 2:30p SST
Minnesota Democratic Precinct Caucuses	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Texas Democratic Primary (MST) ^*A	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Texas Republican Primary (MST) ^*A	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Saturday 5 March 2016
Kansas Republican Caucuses	2000 UTC	3:00p EST	2:00p CST	1:00p MST	12:00p PST	11:00a AKST 10:00a HAST	4:00p AST 6:00a ChST 9:00a SST
Kentucky Republican Presidential Caucuses (EST) ^*A	2100 UTC	4:00p EST	3:00p CST	2:00p MST	1:00p PST	12:00p AKST 11:00a HAST	5:00p AST 7:00a ChST 10:00a SST
Kentucky Republican Presidential Caucuses (CST) ^*A	2200 UTC	5:00p EST	4:00p CST	3:00p MST	2:00p PST	1:00p AKST 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Maine Republican Municipal Caucuses	0000 UTC	7:00p EST	6:00p CST	5:00p MST	4:00p PST	3:00p AKST 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Louisiana Democratic Primary	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Louisiana Republican Primary	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Nebraska Democratic Precinct Caucuses (CST, MST) ^*S	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Sunday 6 March 2016
Puerto Rico Republican Primary	1900 UTC	2:00p EST	1:00p CST	12:00p MST	11:00a PST	10:00a AKST 9:00a HAST	3:00p AST 5:00a ChST 8:00a SST
Maine Democratic Municipal Caucuses	2300 UTC	6:00p EST	5:00p CST	4:00p MST	3:00p PST	2:00p AKST 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
Tuesday 8 March 2016
Michigan Democratic Primary (EST) ^*A	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Michigan Republican Primary (EST) ^*A	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Mississippi Democratic Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Mississippi Republican Primary	0100 UTC	8:00p EST	7:00p CST	6:00p MST	5:00p PST	4:00p AKST 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Michigan Democratic Primary (CST) ^*A	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Michigan Republican Primary (CST) ^*A	0200 UTC	9:00p EST	8:00p CST	7:00p MST	6:00p PST	5:00p AKST 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Idaho Republican Primary (MST) ^*A	0300 UTC	10:00p EST	9:00p CST	8:00p MST	7:00p PST	6:00p AKST 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Idaho Republican Primary (PST) ^*A	0400 UTC	11:00p EST	10:00p CST	9:00p MST	8:00p PST	7:00p AKST 6:00p HAST	12:00a AST 2:00p ChST 5:00p SST
Hawaii Republican Precinct Caucuses	0600 UTC	1:00a EST	12:00a CST	11:00p MST	10:00p PST	9:00p AKST 8:00p HAST	2:00a AST 4:00p ChST 7:00p SST
Thursday 10 March 2016
Virgin Islands Republican Territorial Caucus	2200 UTC	5:00p EST	4:00p CST	3:00p MST	2:00p PST	1:00p AKST 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Saturday 12 March 2016
District of Columbia Republican Convention	2100 UTC	4:00p EST	3:00p CST	2:00p MST	1:00p PST	12:00p AKST 11:00a HAST	5:00p AST 7:00a ChST 10:00a SST
Tuesday 15 March 2016
Northern Marianas Republican Commonwealth Convention	1000 UTC	6:00a EDT 5:00a EST	5:00a CDT	4:00a MDT 3:00a MST	3:00a PDT	2:00a AKDT 1:00a HADT 12:00a HAST	6:00a AST 8:00p ChST 11:00p SST
Florida Democratic Primary (EDT) ^*A	2300 UTC	7:00p EDT 6:00p EST	6:00p CDT	5:00p MDT 4:00p MST	4:00p PDT	3:00p AKDT 2:00p HADT 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
Florida Republican Primary (EDT) ^*A	2300 UTC	7:00p EDT 6:00p EST	6:00p CDT	5:00p MDT 4:00p MST	4:00p PDT	3:00p AKDT 2:00p HADT 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
North Carolina Democratic Primary	2330 UTC	7:30p EDT 6:30p EST	6:30p CDT	5:30p MDT 4:30p MST	4:30p PDT	3:30p AKDT 2:30p HADT 1:30p HAST	7:30p AST 9:30a ChST 12:30p SST
North Carolina Republican Primary
Ohio Democratic Primary
Ohio Republican Primary
Florida Democratic Primary (CDT) ^*A	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Florida Republican Primary (CDT) ^*A
Illinois Democratic Primary
Illinois Republican Primary
Missouri Democratic Primary
Missouri Republican Primary
Tuesday 22 March 2016
Arizona Democratic Primary	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Arizona Republican Primary	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Utah Democratic Neighborhood Caucuses	0230 UTC	10:30p EDT 9:30p EST	9:30p CDT	8:30p MDT 7:30p MST	7:30p PDT	6:30p AKDT 5:30p HADT 4:30p HAST	10:30p AST 12:30p ChST 3:30p SST
Tuesday 5 April 2016
Wisconsin Democratic Primary	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Wisconsin Republican Primary	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Tuesday 19 April 2016
New York Democratic Primary	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
New York Republican Primary	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Tuesday 26 April 2016
Connecticut Democratic Primary	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
Connecticut Republican Primary
Delaware Democratic Primary
Delaware Republican Primary
Maryland Democratic Primary
Maryland Republican Primary
Pennsylvania Democratic Primary
Pennsylvania Republican Primary
Rhode Island Democratic Primary
Rhode Island Republican Primary
Tuesday 3 May 2016
Indiana Democratic Primary (EDT) ^*A	2200 UTC	6:00p EDT 5:00p EST	5:00p CDT	4:00p MDT 3:00p MST	3:00p PDT	2:00p AKDT 1:00p HADT 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Indiana Republican Primary (EDT) ^*A	2200 UTC	6:00p EDT 5:00p EST	5:00p CDT	4:00p MDT 3:00p MST	3:00p PDT	2:00p AKDT 1:00p HADT 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Indiana Democratic Primary (CDT) ^*A	2300 UTC	7:00p EDT 6:00p EST	6:00p CDT	5:00p MDT 4:00p MST	4:00p PDT	3:00p AKDT 2:00p HADT 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
Indiana Republican Primary (CDT) ^*A	2300 UTC	7:00p EDT 6:00p EST	6:00p CDT	5:00p MDT 4:00p MST	4:00p PDT	3:00p AKDT 2:00p HADT 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
Saturday 7 May 2016
Guam Democratic Caucus	1000 UTC	6:00a EDT 5:00a EST	5:00a CDT	4:00a MDT 3:00a MST	3:00a PDT	2:00a AKDT 1:00a HADT 12:00a HAST	6:00a AST 8:00p ChST 11:00p SST
Tuesday 10 May 2016
West Virginia Democratic Primary	2330 UTC	7:30p EDT 6:30p EST	6:30p CDT	5:30p MDT 4:30p MST	4:30p PDT	3:30p AKDT 2:30p HADT 1:30p HAST	7:30p AST 9:30a ChST 12:30p SST
West Virginia Republican Primary	2330 UTC	7:30p EDT 6:30p EST	6:30p CDT	5:30p MDT 4:30p MST	4:30p PDT	3:30p AKDT 2:30p HADT 1:30p HAST	7:30p AST 9:30a ChST 12:30p SST
Nebraska Democratic Advisory Primary (CDT, MDT) ^*S	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Nebraska Republican Presidential Primary (CDT, MDT) ^*S	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
Tuesday 17 May 2016
Kentucky Democratic Primary (EDT) ^*A	2200 UTC	6:00p EDT 5:00p EST	5:00p CDT	4:00p MDT 3:00p MST	3:00p PDT	2:00p AKDT 1:00p HADT 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Kentucky Democratic Primary (CDT) ^*A	2300 UTC	7:00p EDT 6:00p EST	6:00p CDT	5:00p MDT 4:00p MST	4:00p PDT	3:00p AKDT 2:00p HADT 1:00p HAST	7:00p AST 9:00a ChST 12:00p SST
Oregon Democratic Primary (MDT) ^*A	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Oregon Republican Primary (MDT) ^*A	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Oregon Democratic Primary (PDT) ^*A	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Oregon Republican Primary (PDT) ^*A	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Tuesday 24 May 2016
Washington Democratic Advisory Primary	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Washington Republican Primary	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Saturday 4 June 2016
Virgin Islands Democratic District Caucuses	2200 UTC	6:00p EDT 5:00p EST	5:00p CDT	4:00p MDT 3:00p MST	3:00p PDT	2:00p AKDT 1:00p HADT 12:00p HAST	6:00p AST 8:00a ChST 11:00a SST
Sunday 5 June 2016
Puerto Rico Democratic Primary	1900 UTC	3:00p EDT 2:00p EST	2:00p CDT	1:00p MDT 12:00p MST	12:00p PDT	11:00a AKDT 10:00a HADT 9:00a HAST	3:00p AST 5:00a ChST 8:00a SST
Tuesday 7 June 2016
New Jersey Democratic Primary	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
New Jersey Republican Primary	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
South Dakota Democratic Primary (CDT) ^*A	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
South Dakota Republican Primary (CDT) ^*A	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST
New Mexico Democratic Primary	0100 UTC	9:00p EDT 8:00p EST	8:00p CDT	7:00p MDT 6:00p MST	6:00p PDT	5:00p AKDT 4:00p HADT 3:00p HAST	9:00p AST 11:00a ChST 2:00p SST
New Mexico Republican Primary
South Dakota Democratic Primary (MDT) ^*A
South Dakota Republican Primary (MDT) ^*A
Montana Democratic Primary	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
Montana Republican Primary	0200 UTC	10:00p EDT 9:00p EST	9:00p CDT	8:00p MDT 7:00p MST	7:00p PDT	6:00p AKDT 5:00p HADT 4:00p HAST	10:00p AST 12:00p ChST 3:00p SST
California Democratic Primary	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
California Republican Primary	0300 UTC	11:00p EDT 10:00p EST	10:00p CDT	9:00p MDT 8:00p MST	8:00p PDT	7:00p AKDT 6:00p HADT 5:00p HAST	11:00p AST 1:00p ChST 4:00p SST
Tuesday 14 June 2016
District of Columbia Democratic Primary	0000 UTC	8:00p EDT 7:00p EST	7:00p CDT	6:00p MDT 5:00p MST	5:00p PDT	4:00p AKDT 3:00p HADT 2:00p HAST	8:00p AST 10:00a ChST 1:00p SST

Notes

Polling places in states that span multiple time zones will close either synchronously or asynchronously.

(Note ^*S) With synchronized closing, all the polls close at the same GMT/UTC time. When polls close in the advanced local time zone, they will close one hour earlier in the lagging local time zone.
(Note ^*A) With asynchronous closing, the polls close at different GMT/UTC times in different parts of the state. Media outlets might decide to declare a winner before all the polls have closed.

Florida Democrat Primary: Polls close asynchronously on Tuesday 15 March 2016 at 7:00p EDT (2300 UTC) / 7:00p CDT (0000 UTC). Relatively small portions of this state are in CDT and so the vast majority of the polls are closed by the time indicated EDT.

Florida Republican Primary: Polls close asynchronously on Tuesday 15 March 2016 at 7:00p EDT (2300 UTC) / 7:00p CDT (0000 UTC). Relatively small portions of this state are in CST and so the vast majority of the polls are closed by the time indicated EST.

Idaho Republican Primary: Polls close asynchronously on Tuesday 8 March 2016 at 8:00p MST (0300 UTC) / 8:00p PST (0400 UTC). Local option allows polling places to open at 7 AM. A sizable part of IDAHO is in PT but, as the MT section is the much more populated portion of the state, the networks consider that "most of the polls in IDAHO" are closed by 8 PM MT.

Indiana Democrat Primary: Polls close asynchronously on Tuesday 3 May 2016 at 6:00p EDT (2200 UTC) / 6:00p CDT (2300 UTC). Although a portion of this state is in CT, the majority of the polls are closed by the time indicated ET when the networks feel they can project.

Indiana Republican Primary: Polls close asynchronously on Tuesday 3 May 2016 at 6:00p EDT (2200 UTC) / 6:00p CDT (2300 UTC). Although a portion of this state is in CT, the majority of the polls are closed by the time indicated ET when the networks feel they can project.

Kentucky Democrat Primary: Polls close asynchronously on Tuesday 17 May 2016 at 6:00p EDT (2200 UTC) / 6:00p CDT (2300 UTC). Poll closing time could be rather problematic in KENTUCKY. A large chunk of the state is in CDT [but the networks consider that "most of the polls have closed" in KENTUCKY by 6 PM EDT. CDT voters in KENTUCKY may note the networks' willingness/eagerness to project a winner as early as 6 PM EDT.

Kentucky Republican Presidential Caucuses: Polls close asynchronously on Saturday 5 March 2016 at 4:00p EST (2100 UTC) / 4:00p CST (2200 UTC).

Massachusetts Democrat Primary: Polls close on Tuesday 1 March 2016 at 8:00p EST (0100 UTC). Some municipalities may open their polls as early as 5:45a EST.

Massachusetts Republican Primary: Polls close on Tuesday 1 March 2016 at 8:00p EST (0100 UTC). Some municipalities may open their polls as early as 5:45a EST.

Michigan Democrat Primary: Polls close asynchronously on Tuesday 8 March 2016 at 8:00p EST (0100 UTC) / 8:00p CST (0200 UTC). Relatively small portions of this state are in CT and so the vast majority of the polls are closed by the time indicated ET, when the networks feel they can project.

Michigan Republican Primary: Polls close asynchronously on Tuesday 8 March 2016 at 8:00p EST (0100 UTC) / 8:00p CST (0200 UTC). Relatively small portions of this state are in CT and so the vast majority of the polls are closed by the time indicated ET, when the networks feel they can project.

Montana Democrat Primary: Polls close on Tuesday 7 June 2016 at 8:00p MDT (0200 UTC). A polling place with less than 400 registered voters must be open at least from noon to 8 p.m. or until all registered electors have voted.

Montana Republican Primary: Polls close on Tuesday 7 June 2016 at 8:00p MDT (0200 UTC). A polling place with less than 400 registered voters must be open at least from noon to 8 p.m. or until all registered electors have voted.

Nebraska Democrat Advisory Primary: Polls close synchronously on Tuesday 10 May 2016 at 8:00p CDT (0100 UTC) / 7:00p MDT (0100 UTC). The polls open and close at the same GMT/UTC time, that is, polls open and close at a particular local time in the advanced time zone and open and close one hour earlier local time in the lagging time zone.

Nebraska Democrat Precinct Caucuses: Polls close synchronously on Saturday 5 March 2016 at 8:00p CST (0200 UTC) / 7:00p MST (0200 UTC).

Nebraska Republican Presidential Primary: Polls close synchronously on Tuesday 10 May 2016 at 8:00p CDT (0100 UTC) / 7:00p MDT (0100 UTC). The polls open and close at the same GMT/UTC time, that is, polls open and close at a particular local time in the advanced time zone and open and close one hour earlier local time in the lagging time zone.

New Hampshire Democrat Primary: Polls close on Tuesday 9 February 2016 at 8:00p EST (0100 UTC). Polls must open by 11 AM however most open between 7 AM and 8 AM. NEW HAMPSHIRE permits its 13 cities to keep their polls open until 8 PM EDT by local option- however, as there ARE only 13 cities among New Hampshire's 234 County subdivisions [the 221 "non-cities", of course, being the proverbial New England Town(ship)], the fact is that the vast majority of NH's polls have closed by 7 PM EDT and the networks have no problem considering this hour as the earliest hour of potential projection.

New Hampshire Republican Primary: Polls close on Tuesday 9 February 2016 at 8:00p EST (0100 UTC). Polls must open by 11 AM however most open between 7 AM and 8 AM. NEW HAMPSHIRE permits its 13 cities to keep their polls open until 8 PM EDT by local option- however, as there ARE only 13 cities among New Hampshire's 234 County subdivisions [the 221 "non-cities", of course, being the proverbial New England Town(ship)], the fact is that the vast majority of NH's polls have closed by 7 PM EDT and the networks have no problem considering this hour as the earliest hour of potential projection.

North Carolina Democrat Primary: Polls close on Tuesday 15 March 2016 at 7:30p EDT (2330 UTC). In extraordinary circumstances, the county board of elections may direct that the polls remain open until 8:30 p.m.

North Carolina Republican Primary: Polls close on Tuesday 15 March 2016 at 7:30p EDT (2330 UTC). In extraordinary circumstances, the county board of elections may direct that the polls remain open until 8:30 p.m.

Oregon Democrat Primary: Polls close asynchronously on Tuesday 17 May 2016 at 8:00p PDT (0300 UTC) / 8:00p MDT (0200 UTC). Oregon votes by mail. Ballots must be in the hands of election workers or in an official drop-off location no later than 8 PM local time. OREGON is the reverse of the norm because the by far largest portion of the state is in the lagging time zone and the networks have no choice but to not consider the OREGON polls closed until 8 PM Pacific.

Oregon Republican Primary: Polls close asynchronously on Tuesday 17 May 2016 at 8:00p PDT (0300 UTC) / 8:00p MDT (0200 UTC). Oregon votes by mail. Ballots must be in the hands of election workers or in an official drop-off location no later than 8 PM local time. OREGON is the reverse of the norm because the by far largest portion of the state is in the lagging time zone and the networks have no choice but to not consider the OREGON polls closed until 8 PM Pacific.

Rhode Island Democrat Primary: Polls close on Tuesday 26 April 2016 at 8:00p EDT (0000 UTC). Polls open 7a to late as 12 noon by location for Presidential Primaries.

Rhode Island Republican Primary: Polls close on Tuesday 26 April 2016 at 8:00p EDT (0000 UTC). Polls open 7a to as late as 12 noon by location for Presidential Primaries.

South Dakota Democrat Primary: Polls close asynchronously on Tuesday 7 June 2016 at 7:00p CDT (0000 UTC) / 7:00p MDT (0100 UTC).

South Dakota Republican Primary: Polls close asynchronously on Tuesday 7 June 2016 at 7:00p CDT (0000 UTC) / 7:00p MDT (0100 UTC).

Tennessee Democrat Primary: Polls reportedly close synchronously on Tuesday 1 March 2016 at 8:00p EST (0100 UTC) / 7:00p CST (0100 UTC). The polls close at the same GMT/UTC time, that is, polls close at a particular local time in the advanced time zone and close one hour earlier local time in the lagging time zone. Poll opening times are set by county.

Tennessee Republican Primary: Polls reportedly close synchronously on Tuesday 1 March 2016 at 8:00p EST (0100 UTC) / 7:00p CST (0100 UTC). The polls close at the same GMT/UTC time, that is, polls close at a particular local time in the advanced time zone and close one hour earlier local time in the lagging time zone. Poll opening times are set by county.

Texas Democrat Primary: Polls close asynchronously on Tuesday 1 March 2016 at 7:00p CST (0100 UTC) / 7:00p MST (0200 UTC). Only the area around El Paso is in MST, so the vast majority of polls have closed in TX by 7 PM CST.

Texas Republican Primary: Polls close asynchronously on Tuesday 1 March 2016 at 7:00p CST (0100 UTC) / 7:00p MST (0200 UTC). Only the area around El Paso is in MST, so the vast majority of polls have closed in TX by 7 PM CST.

Vermont Democrat Primary: Polls close on Tuesday 1 March 2016 at 7:00p EST (0000 UTC). Polls may open as early as 5:00a and no later than 10:00a as set by the Board of Civil Authority.

Vermont Republican Primary: Polls close on Tuesday 1 March 2016 at 7:00p EST (0000 UTC). Polls may open as early as 5:00a and no later than 10:00a as set by the Board of Civil Authority.

Washington Democrat Advisory Primary: Polls close on Tuesday 24 May 2016 at 8:00p PDT (0300 UTC). Washington votes by mail. Ballots must be postmarked on or before Election Day, or dropped off in a designated ballot box by 8 p.m. local time on Election Day.

Washington Republican Primary: Polls close on Tuesday 24 May 2016 at 8:00p PDT (0300 UTC). Washington votes by mail. Ballots must be postmarked on or before Election Day, or dropped off in a designated ballot box by 8 p.m. local time on Election Day.

Time zone abbreviations

UTC: Coordinated Universal Time (Greenwich England)
AST: Atlantic Standard Time (Puerto Rico, Virgin Islands), UTC - 4 hours
EST: Eastern Standard Time, UTC - 5 hours
EDT: Eastern Daylight Time, UTC - 4 hours
CST: Central Standard Time, UTC - 6 hours
CDT: Central Daylight Time, UTC - 5 hours
MST: Mountain Standard Time, UTC - 7 hours
MDT: Mountain Daylight Time, UTC - 6 hours
PST: Pacific Standard Time, UTC - 8 hours
PDT: Pacific Daylight Time, UTC - 7 hours
AKST: Alaska Standard Time, UTC - 9 hours
AKDT: Alaska Daylight Time, UTC - 8 hours
HAST: Hawaii-Aleutian Standard Time, UTC - 10 hours
HADT: Hawaii-Aleutian Daylight Time (Hawii does not observe daylight time), UTC - 9 hours
ChST: Chamorro Standard Time (Guam, Northern Marianas), UTC + 10 hours
SST: Samoa Standard Time, UTC - 11 hours
m: midnight
a: AM
p: PM

Notes

Primary dates marked "presumably" and polling times marked "reportedly" are based on unofficial or estimated data (especially as regards local variations from a jurisdictionwide statutory and/or regulatory standard) and are, thereby, subject to change.