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World's Info : USA time zones by state

There are 9 standard time zones in the USA officially defined by federal law. The entire 50 states and the District of Columbia are situated in 6 main time zones.

Other 3 time zones are used by insular areas of the USA outside of the states.

Nowadays, 48 of the US states use Daylight Saving Time (DST) in the summer period, the exceptions are Arizona, where most of territories do not change to DST (since 1967), and the entire Hawaii, which has never observed the summer time. All insular territories like Puerto Rico, US Virgin Islands, American Samoa, Guam and the Northern Mariana Islands have no DST.

For the most detailed information, see the table below or check the USA time zones by city.

Daylight Saving Time (DST) in 2015 - starts on Sunday 08 March 2015, 02:00 local time (clock by 1 hour ahead) - ends on Sunday 01 November 2015, 02:00 local time (clock by 1 hour back)

Alphabetical list of USA states with their standard time zones and DST
State with state codeCapital city or example locationUTC time offsetDST
A
Alabama (AL)Montgomery-06:00-05:00
Alaska (AK), most ofJuneau-09:00-08:00
Alaska (AK), small partAdak, Unalaska-10:00-09:00
Arizona (AZ), most ofPhoenix-07:00none
Arizona (AZ), small partWindow Rock-07:00-06:00
Arkansas (AR)Little Rock-06:00-05:00
C
California (CA)Sacramento-08:00-07:00
Colorado (CO)Denver-07:00-06:00
Connecticut (CT)Hartford-05:00-04:00
D
Delaware (DE)Dover-05:00-04:00
District of Columbia (DC)Washington, D.C.-05:00-04:00
F
Florida (FL), most ofTallahassee-05:00-04:00
Florida (FL), small partPensacola-06:00-05:00
G
Georgia (GA)Atlanta-05:00-04:00
H
Hawaii (HI)Honolulu-10:00none
I
Idaho (ID), most ofBoise-07:00-06:00
Idaho (ID), small partCoeur d'Alene-08:00-07:00
Illinois (IL)Springfield-06:00-05:00
Indiana (IN), most ofIndianapolis-05:00-04:00
Indiana (IN), small partGary, Evansville-06:00-05:00
Iowa (IA)Des Moines-06:00-05:00
K
Kansas (KS), most ofTopeka-06:00-05:00
Kansas (KS), small partGoodland-07:00-06:00
Kentucky (KY), most ofFrankfort-05:00-04:00
Kentucky (KY), small partBowling Green-06:00-05:00
L
Louisiana (LA)Baton Rouge-06:00-05:00
M
Maine (ME)Augusta-05:00-04:00
Maryland (MD)Annapolis-05:00-04:00
Massachusetts (MA)Boston-05:00-04:00
Michigan (MI), most ofLansing-05:00-04:00
Michigan (MI), small partIron Mountain-06:00-05:00
Minnesota (MN)St. Paul-06:00-05:00
Mississippi (MS)Jackson-06:00-05:00
Missouri (MO)Jefferson City-06:00-05:00
Montana (MT)Helena-07:00-06:00
N
Nebraska (NE), most ofLincoln-06:00-05:00
Nebraska (NE), small partScottsbluff, Chadron-07:00-06:00
Nevada (NV)Carson City-08:00-07:00
New Hampshire (NH)Concord-05:00-04:00
New Jersey (NJ)Trenton-05:00-04:00
New Mexico (NM)Santa Fe-07:00-06:00
New York (NY)Albany-05:00-04:00
North Carolina (NC)Raleigh-05:00-04:00
North Dakota (ND), most ofBismarck-06:00-05:00
North Dakota (ND), small partDickinson-07:00-06:00
O
Ohio (OH)Columbus-05:00-04:00
Oklahoma (OK)Oklahoma City-06:00-05:00
Oregon (OR), most ofSalem-08:00-07:00
Oregon (OR), small partOntario-07:00-06:00
P
Pennsylvania (PE)Harrisburg-05:00-04:00
R
Rhode Island (RI)Providence-05:00-04:00
S
South Carolina (SC)Columbia-05:00-04:00
South Dakota (SD), most ofPierre-06:00-05:00
South Dakota (SD), small partRapid City-07:00-06:00
T
Tennessee (TN), most ofNashville-06:00-05:00
Tennessee (TN), small partKnoxville, Chattanooga-05:00-04:00
Texas (TX), most ofAustin-06:00-05:00
Texas (TX), small partEl Paso-07:00-06:00
U
Utah (UT)Salt Lake City-07:00-06:00
V
Vermont (VT)Montpelier-05:00-04:00
Virginia (VA)Richmond-05:00-04:00
W
Washington (WA)Olympia-08:00-07:00
West Virginia (WV)Charleston-05:00-04:00
Wisconsin (WI)Madison-06:00-05:00
Wyoming (WY)Cheyenne-07:00-06:00

Some overseas territories governed by the USA in the Pacific and the Caribbean, so called United States Minor Outlying Islands have the following standard time zones not specified in the federal law, and these areas don't change to DST.


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