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North American time zones:

EDT – Eastern Daylight Time

Important

EDT is only used while Daylight Saving Time is active.

During this time of year, locations on EDT are now on EST (Eastern Standard Time) instead.

Currently no cities are observing EDT

Locations going to EDT later

Current time in New York: Sunday, December 2, 2012 at 9:42:53 PM EST
New York will stay on EST until Sunday, March 10, 2013 going to EDT

Find local time and time zone for a location

We recommend looking up by location name, not time zone name.

Time zone offset: UTC - 4 hours

EDT is 4 hours behind of Coordinated Universal Time (UTC)

Note that EDT is a daylight saving time/summer time zone. It is generally only used during the summer in the places listed below, during the winter EST is used instead

Time zone abbreviations: EDT, HAE

Full name is Eastern Daylight Time
HAE – Heure Avancée de l'Est (French)

Email time zone indicator: -0400

An email sent from someone in the EDT time zone will have the time zone listed as "-0400" in the headers of the email. (However, "-0400" does not have to be in EDT, as other time zones could have the same UTC offset).

For actual dates DST might be observed, look at the examples below

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Where and when is EDT observed?

US states using EDT in the summer and EST during the winter

Connecticut
Delaware
District of Columbia
Florida - Southern/Eastern parts
except Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton and Washington counties and norther Gulf county - look in CST/CDT
Georgia
Indiana - all except for these north-western counties near Chicago (Lake, Porter, La Porte, Newton, Jasper, Starke) and these south-western counties in Indiana near Evansville
Gibson, Posey, Vanderburgh, Warrick, Perry
Kentucky - eastern parts
counties of Anderson, Bath, Bell, Boone, Bourbon, Boyd, Boyle, Bracken, Breathitt, Bullitt, Campbell, Carroll, Carter, Casey, Clark, Clay, Elliott, Estill, Fayette, Fleming, Floyd, Franklin, Gallatin, Garrard, Grant, Greenup, Hancock, Hansock, Hardin, Harlan, Harrison, Henry, Jackson, Jefferson, Jessamine, Johnson, Kenton, Knott, Knox, Larue, Laurel, Lawrence, Lee, Leslie, Letcher, Lewis, Lincoln, Madison, Magoffin, Marion, Martin, Mason, McCreary, Meade, Menifee, Mercer, Montgomery, Morgan, Nelson, Nicholas, Oldham, Owen, Owsley, Pendleton, Perry, Pike, Powell, Pulaski, Robertson, Rockcastle, Rowan, Scott, Shelby, Spencer, Taylor, Trimble, Washington, Wayne, Whitley, Wolfe, Woodford
Maine
Maryland
Massachusetts
Michigan - most except these western counties
Dickinson, Gogebic, Iron, and Menominee - which are on CST/CDT
New Hampshire
New Jersey
New York
North Carolina
Ohio
Pennsylvania
Rhode Island
South Carolina
Tennessee - eastern counties
Anderson, Blount, Bradley, Campbell, Carter, Claiborne, Cocke, Grainger, Greene, Hamblen, Hamilton, Hancock, Hawkins, Jefferson, Johnson, Knox, Loudon, McMinn, Meigs, Monroe, Morgan, Polk, Rhea, Roane, Scott, Sevier, Sullivan, Unicoi, Union, and Washington
Vermont
Virginia
West Virginia

Canadian provinces using EDT in the summer and EST during the winter

Nunavut - most of it
except Kugluktuk, Cambridge Bay - CST/CDT and Southampton Island (Coral Harbor) EST all year
Ontario - most parts east of 90 West and two communities west of 90 West
Shebandowan, Upsala
Quebec - most of it
except East of 63 West, Blanc Sablon which observe AST all year

Time zone maps are under development and will be available later

Example location in EDT

New York - This time zone offset is used during summer in this location

Other time zones in North America

Go directly through the links below, or see the North America time zone list

ADT - Atlantic Daylight Time
AKDT - Alaska Daylight Time
AKST - Alaska Standard Time
AST - Atlantic Standard Time
CDT - Central Daylight Time
CST - Central Standard Time
EGST - Eastern Greenland Summer Time
EGT - East Greenland Time
EST - Eastern Standard Time
HADT - Hawaii-Aleutian Daylight Time
HAST - Hawaii-Aleutian Standard Time
MDT - Mountain Daylight Time
MST - Mountain Standard Time
NDT - Newfoundland Daylight Time
NST - Newfoundland Standard Time
PDT - Pacific Daylight Time
PMDT - Pierre & Miquelon Daylight Time
PMST - Pierre & Miquelon Standard Time
PST - Pacific Standard Time
WGST - Western Greenland Summer Time
WGT - West Greenland Time