List of U.S. states by time zone

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Map of U.S. time zones with new CST and EST areas displayed

This is a list of United States of America States by time zone. For more about the time zones of the U.S. and other time zones see: time zone. Most of the U.S. has Daylight Saving Time (DST), so states that have DST are not marked as such and states that don't have DST are clearly marked as such. This is the opposite of how it is marked in the time zone article.

States, territories, etc.

Alabama: UTC-6 CST Central Standard Time
Alaska:
- Most of state: UTC-9 AKST Alaska Standard Time
- Aleutian Islands (west of 169° 30' W): UTC-10 HST without DST Hawaii-Aleutian Standard Time
American Samoa: UTC-11 without DST Samoa Standard Time
Arizona: UTC-7 MST without DST Mountain Standard Time
- The Navajo Nation observes DST.
Arkansas: UTC-6 CST Central Standard Time
California: UTC-8 PST Pacific Standard Time
Colorado: UTC-7 MST Mountain Standard Time
Connecticut: UTC-5 EST Eastern Standard Time
Delaware: UTC-5 EST Eastern Standard Time
Florida
- Florida Peninsula: UTC-5 EST Eastern Standard Time
- Florida Panhandle:
  - East of the Apalachicola River, plus the portions of Franklin and Gulf Counties lying south of the Intracoastal Waterway: UTC-5 EST Eastern Standard Time
  - West of Apalachicola River, except as noted above: UTC-6 CST Central Standard Time
Georgia: UTC-5 EST Eastern Standard Time
Guam: UTC+10 without DST Chamorro Standard Time
Hawaii: UTC-10 HST without DST Hawaii-Aleutian Standard Time
Idaho:
- part in: UTC-8 PST Pacific Standard Time (north of the Salmon River, that is between the Oregon state border and the Idaho County/Lemhi County border; west of the Idaho County/Lemhi County border, that is between the Salmon River and the Montana state border)
- Remainder of state: UTC-7 MST Mountain Standard Time (A legislative error in 1966 seems to have moved this area to UTC-6 CST. 15 U.S.C. ch.6, § 264. MST is observed.)
Illinois: UTC-6 CST Central Standard Time
Indiana
- Most of state: UTC-5 EST Eastern Standard Time
- Northwest and southwest corners: UTC-6 CST Central Standard Time
Iowa: UTC-6 CST Central Standard Time
Kansas
- Most of state: UTC-6 CST Central Standard Time
- Greeley, Hamilton, Sherman and Wallace counties: UTC-7 MST Mountain Standard Time
Kentucky
- Eastern half of state: UTC-5 EST Eastern Standard Time
- Western half of state: UTC-6 CST Central Standard Time
Louisiana: UTC-6 CST Central Standard Time
Maine: UTC-5 EST Eastern Standard Time
Maryland: UTC-5 EST Eastern Standard Time
Massachusetts: UTC-5 EST Eastern Standard Time
Michigan
- Most of state: UTC-5 EST Eastern Standard Time
- Counties bordering on Wisconsin: UTC-6 CST Central Standard Time
Minnesota: UTC-6 CST Central Standard Time
Mississippi: UTC-6 CST Central Standard Time
Missouri: UTC-6 CST Central Standard Time
Montana: UTC-7 MST Mountain Standard Time
Nebraska
- Most of state: UTC-6 CST Central Standard Time
- Nebraska Panhandle, counties with Colorado as a western boundary, and the western Sandhills: UTC-7 MST Mountain Standard Time
NevadaUTC-8 PST Pacific Standard Time
- Most of State: UTC-8 PST Pacific Standard Time
- Jackpot and West Wendover: UTC-7 MST Mountain Standard Time
New Hampshire: UTC-5 EST Eastern Standard Time
New Jersey: UTC-5 EST Eastern Standard Time
New Mexico: UTC-7 MST Mountain Standard Time
New York: UTC-5 EST Eastern Standard Time
North Carolina: UTC-5 EST Eastern Standard Time
North Dakota
- Most of state: UTC-6 CST Central Standard Time
- West of the Missouri River (except Morton and Oliver counties, and parts of Dunn, McKenzie, and Sioux counties: UTC-7 MST Mountain Standard Time
Northern Mariana Islands: UTC+10 without DST Chamorro Standard Time
Ohio: UTC-5 EST Eastern Standard Time
Oklahoma: UTC-6 CST Central Standard Time
Oregon
- Most of state: UTC-8 PST Pacific Standard Time (including southern 1/5 of Malheur County)
- Remainder of Malheur County: UTC-7 MST Mountain Standard Time
Pennsylvania: UTC-5 EST Eastern Standard Time
Puerto Rico: UTC-4 AST without DST Atlantic Standard Time
Rhode Island: UTC-5 EST Eastern Standard Time
South Carolina: UTC-5 EST Eastern Standard Time
South Dakota
- Eastern half of state: UTC-6 CST Central Standard Time
- Western half of state: UTC-7 MST Mountain Standard Time
Tennessee
- East Tennessee, except Marion County: UTC-5 EST Eastern Standard Time
- Middle Tennessee, plus Marion County: UTC-6 CST Central Standard Time
- West Tennessee: UTC-6 CST Central Standard Time
Texas
- Most of state: UTC-6 CST Central Standard Time
- El Paso and Hudspeth counties, and part of Culberson County: UTC-7 MST Mountain Standard Time
Utah: UTC-7 MST Mountain Standard Time
Vermont: UTC-5 EST Eastern Standard Time
Virginia: UTC-5 EST Eastern Standard Time
U.S. Virgin Islands: UTC-4 AST without DST Atlantic Standard Time
Washington: UTC-8 PST Pacific Standard Time
Washington, DC: UTC-5 EST Eastern Standard Time
West Virginia: UTC-5 EST Eastern Standard Time
Wisconsin: UTC-6 CST Central Standard Time
Wyoming: UTC-7 MST Mountain Standard Time

External links

http://www.time.gov official time zone site of the U.S.A. government
http://boulder.nist.gov/timefreq/ U.S.A. government site with free software to synchronize your computer clock (this link maybe has to be moved or copied to the time zone article)
http://tycho.usno.navy.mil/ another U.S.A. government site with free software to synchronize your computer clock, this one is from the American scientific army department (this link maybe has to be moved or copied to the time zone article)
http://nationalatlas.gov/printable/images/pdf/reference/timezones4.pdf Printable U.S. Time Zone map.
U.S. cities and towns shown in their respective time zones at Internet Accuracy Project

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