Time Zones USA Map - Live Pacific Time, Central Time, Eastern Time

Real-time display of all six United States time zones with interactive map

Current Time in All US Time Zones

Hawaii Time
HST
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No DST
Pacific Time
PT
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Mountain Time
MT
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Central Time
CT
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Eastern Time
ET
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Alaska Time
AKT
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USA Time Zone Map

The United States spans six time zones from east to west, covering nearly 3,000 miles of longitude. This time zones USA map clearly shows the boundaries between each zone, including Eastern Time, Central Time, Mountain Time, Pacific Time, Alaska Time, and Hawaii Time. Use our live clocks above to see the current time in each zone.

Time zones USA map showing Eastern Time, Central Time, Mountain Time, Pacific Time, Alaska Time, and Hawaii Time
Eastern Time (ET)
Central Time (CT)
Mountain Time (MT)
Pacific Time (PT)
Alaska Time (AKT)
Hawaii Time (HST)

As shown on our time zones USA map, the six standard time zones are Eastern Time, Central Time, Mountain Time, Pacific Time, Alaska Time, and Hawaii-Aleutian Time. During Daylight Saving Time (observed by most states except Arizona and Hawaii), clocks are set forward by one hour in each zone from the second Sunday in March to the first Sunday in November.

Detailed Information About Each US Time Zone

Eastern Time Zone (Eastern Time / ET)

Eastern Time (UTC-5:00 standard time, UTC-4:00 during Daylight Saving Time) covers the eastern seaboard of the USA and is home to many major population centers. Eastern Time includes the entire East Coast from Maine to Florida, as well as portions of the Midwest and all of southern and eastern Michigan. Major cities in Eastern Time include New York City, Washington DC, Boston, Atlanta, and Miami.

Central Time Zone (Central Time / CT)

Central Time (UTC-6:00 standard time, UTC-5:00 during Daylight Saving Time) covers much of the country's midsection, including Chicago, Houston, and Minneapolis-St. Paul. Central Time includes states from North Dakota to Texas in the Great Plains and portions of the Midwest, including western Michigan's Upper Peninsula. Other major cities in Central Time include Dallas, San Antonio, New Orleans, and Nashville.

Mountain Time Zone (Mountain Time / MT)

Mountain Time (UTC-7:00 standard time, UTC-6:00 during Daylight Saving Time) spans from portions of the Great Plains westward to the Rocky Mountains. Mountain Time includes Denver, Salt Lake City, and Phoenix. Most of Arizona does not observe Daylight Saving Time, remaining on Mountain Standard Time year-round. Other cities in Mountain Time include Albuquerque, El Paso, and Boise.

Pacific Time Zone (Pacific Time / PT)

Pacific Time (UTC-8:00 standard time, UTC-7:00 during Daylight Saving Time) covers the West Coast states of Washington, Oregon, and California, plus Nevada and parts of Idaho. Major cities in Pacific Time include Los Angeles, San Francisco, Seattle, San Diego, Portland, and Las Vegas. Pacific Time is three hours behind Eastern Time.

Alaska Time Zone (Alaska Time / AKT)

Alaska Time (UTC-9:00 standard time, UTC-8:00 during Daylight Saving Time) covers most of the state of Alaska, including Anchorage, the state's largest city. Alaska Time is one hour behind Pacific Time and four hours behind Eastern Time. Major cities include Anchorage, Fairbanks, and Juneau.

Hawaii-Aleutian Time Zone (Hawaii Time / HST)

Hawaii Time (UTC-10:00 standard time, UTC-9:00 during Daylight Saving Time for the Aleutian Islands) covers Hawaii and most of the Aleutian Islands in Alaska. Hawaii does not observe Daylight Saving Time, remaining on Hawaii-Aleutian Standard Time year-round. Hawaii Time is two hours behind Pacific Time and five hours behind Eastern Time.

Major Cities by Time Zone

The following table lists major cities in each US time zone, making it easy to determine local times across the country:

Time Zone Standard Time Daylight Time Major Cities
Eastern Time UTC-5:00 UTC-4:00 New York, Washington DC, Boston, Atlanta, Miami, Philadelphia, Pittsburgh, Charlotte, Detroit, Indianapolis, Jacksonville, Columbus
Central Time UTC-6:00 UTC-5:00 Chicago, Houston, Dallas, San Antonio, Austin, New Orleans, Memphis, Nashville, Minneapolis, St. Louis, Kansas City, Milwaukee, Oklahoma City
Mountain Time UTC-7:00 UTC-6:00 Denver, Phoenix (no DST), Salt Lake City, Albuquerque, El Paso, Boise, Tucson (no DST), Cheyenne, Billings
Pacific Time UTC-8:00 UTC-7:00 Los Angeles, San Francisco, Seattle, San Diego, Portland, Las Vegas, Sacramento, San Jose, Oakland, Fresno, Long Beach, Tacoma
Alaska Time UTC-9:00 UTC-8:00 Anchorage, Fairbanks, Juneau, Kodiak, Sitka, Ketchikan, Wasilla, Kenai
Hawaii Time UTC-10:00 UTC-9:00* Honolulu, Hilo, Kailua, Waipahu, Kaneohe, Pearl City, Waimea, Unalaska (Aleutian Islands)*

* Hawaii does not observe Daylight Saving Time; only the Aleutian Islands portion of this time zone changes.

Time Zone Boundaries and Special Cases

States Spanning Multiple Time Zones

Several states on our time zones USA map are divided between two or more time zones:

Daylight Saving Time Exceptions

Not all areas in the United States observe Daylight Saving Time. Notable exceptions include:

Practical Uses for the Time Zones USA Map

Business and Communication

Understanding time zones is crucial for business operations and communication across the United States:

Travel Planning

Time zone awareness is essential when traveling across the United States:

Entertainment and Media

Time zones affect how we consume media and entertainment:

Quick Time Zone Conversions

Here are some common time conversions between US time zones:

History of US Time Zones

Before the late 19th century, time in the United States was not standardized. Each city set its own local time, usually based on solar noon. This created major problems for the expanding railroad system, which found it impossible to create coherent schedules with dozens of different local times.

On November 18, 1883, American and Canadian railroads implemented a standard time system divided into four time zones (Eastern Time, Central Time, Mountain Time, and Pacific Time). This "Railroad Time" was quickly adopted by most cities, though it wasn't officially recognized by the U.S. government until the Standard Time Act of 1918, which also established Daylight Saving Time.

Alaska Time and Hawaii Time zones were standardized later as these territories became states in 1959. Today's time zones USA map reflects over a century of adjustments to time zone boundaries, often influenced by economic connections, TV broadcast patterns, and local preferences.