Time Zones in the USA – Map, Current Time Right Now

by Petr Novák, ? This article’s information was last verified on this date. If you notice any errors, let us know in the comments. Thank you! :-) Updated 12/27/2024 Basics, Tips & Tricks

How many time zones are there in the USA? There are four time zones in the continental United States, and Alaska and Hawaii each have their own time zones. There are six time zones in the U.S., along with three additional ones in the unincorporated territories: Puerto Rico and the U.S. Virgin Islands (AST), American Samoa (SST), and Guam and the Northern Mariana Islands (ChST).

What Time Is It in the USA?

To calculate the current time in the USA, you need to know the difference from Coordinated Universal Time.

Example: It is 20:00 in London. Los Angeles is in the PST/PDT -8 time zone. Subtract 8 hours and you will find that it is now 12:00 in Los Angeles.

Daylight Saving Time in USA

Daylight Saving Time in the U.S. starts in March, when the clock moves forward from 2:00 am to 3:00 am. In autumn, it returns from 2:00 to 1:00. In the United States, daylight saving time is observed throughout the country, except in Hawaii and most of Arizona.

🌞 When Does Daylight Saving Time Change in the US

In the US, daylight saving time always begins on the second Sunday in March and ends on the first Sunday in November, with the time change occurring at 2:00 am local time.

• 2024 10 March – 3 November
• 2025: 9 March – 2 November
• 2026: 8 March – 1 November
• 2027: 14 March – 7 November

Overview of US Time Zones

Time zones in the United States do not always align with state borders. For example, North Dakota, South Dakota, and Kansas fall into two time zones simultaneously.

1. 

   Eastern Standard Time

   • Eastern Standard Time: Eastern Standard Time – EST, UTC-5
   • Eastern Daylight Time: Eastern Daylight Time valid from March to November – EDT, UTC-4

   The EST/EDT time zone is located on the east coast of the U.S., with 17 states falling fully within it. Indiana, Kentucky, Michigan, and Tennessee all fall within CST/CDT at the same time. The portion of Florida west of the Apalachicola River also recognizes CST/CDT.

   🔴 U.S. States in the Eastern Time Zone

   Connecticut, Delaware, Florida (except for the part west of the Apalachicola River), Georgia, Indiana (except for a few counties near Chicago and Evansville), South Carolina, Kentucky (eastern half only), Maine, Maryland, Massachusetts, Michigan (except for four counties in the northwest), New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, North Carolina, Tennessee (eastern third of the state), Virginia, Washington D.C., West Virginia

2. 

   Central Standard Time

   • Central Standard Time: Central Standard Time – CST, UTC-6
   • Central Daylight Time: Central Daylight Time, observed from March to November – CDT, UTC-5

   The Central Time Zone is the second most populous after the Eastern Time Zone, encompassing 20 states, although some only partially fall within it.

   🟡 U.S. States in the Central Time Zone

   Alabama, Arkansas, Florida (only the part west of the Apalachicola River), Illinois, Indiana (only a few counties near Chicago and Evansville, Indiana), Iowa, South Dakota (only the eastern half, east of the Missouri River), Kansas (except for four counties near the border with Colorado), Kentucky (half west of Louisville), Louisiana, Michigan (four counties in the northwest only), Minnesota, Mississippi, Missouri, Nebraska (eastern two-thirds of the state), Oklahoma, North Dakota, Tennessee (western two-thirds only), Texas (except Hudspeth and El Paso counties in the west), Wisconsin

3. 

   Mountain Standard Time

   • Mountain Standard Time: Mountain Standard Time – MST, UTC-7
   • Mountain Daylight Time: Mountain Daylight Saving Time valid from March to November – MDT, UTC-6

   The Mountain Time Zone gets its name from the Rocky Mountains, which it almost entirely covers. Most of the state of Arizona does not observe Daylight Saving Time, and from March to November, it is the same time as the West Coast. The area is marked with darker green.

   🟢 U.S. States in the Mountain Time Zone

   Arizona (except for the Navajo Nation area, where daylight saving time is not observed), Colorado, Idaho (southern half, below the Salmon River), South Dakota (western half only), Kansas (Greeley, Hamilton counties, Sherman and Wallace counties to the west), Montana, Nebraska (western third of the state only), New Mexico, Utah, Wyoming, North Dakota (corner southwest of the Missouri River only), Texas (El Paso and Hudspeth counties to the west only).

4. 

   Pacific Standard Time

   • Pacific Standard Time: Pacific Standard Time – PST, UTC-8
   • Pacific Daylight Time: Pacific Daylight Time is observed from March to November – PDT, UTC-7

   Pacific Time is used off the west coast of the United States, including Los Angeles, San Francisco and Las Vegas.

   🔵 U.S. States in the Pacific Time Zone

   Idaho, California, Nevada, Oregon, except for Malheur County near the Idaho border, Washington

5. 

   Alaska Standard Time

   • Alaska Standard Time: Alaska Standard Time – AKST, UTC-9
   • Alaska Daylight Time: Alaska Daylight Saving Time valid from March to November – AKDT, UTC-8

   The Alaska time zone covers almost all of the state except for one city on the border with Canada. It uses Pacific time for practical reasons.

   🟣 U.S. States in Alaska Time Zone

   Alaska

6. 

   Hawaii-Aleutian Standard Time

   • Hawaii-Aleutian Standard Time: Hawaii-Aleutian Standard Time – HAST, UTC-10

   The Hawaiian Islands are in a separate time zone, HAST, and daylight saving time does not apply.

   🟤 U.S. States in the Hawaii-Aleutian Time Zone

   Hawaii