Flag for United States

Time Change 2024 in the United States

Next change:
Nov
3
1 hour Back

Nov 3, 2024, 2:00 am

Country: United States
Long Name: United States of America
Abbreviations: US, USA
Capital: Washington DC
Time Zones: 7 (Main Country)
Total Time Zones: 12 (with dependencies)
Dial Code: +1

Mar 10

Forward 1 hour

Mar 10, 2024 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, March 10, 2024, 2:00:00 am clocks were turned forward 1 hour to
Sunday, March 10, 2024, 3:00:00 am local daylight time instead.

Sunrise and sunset were about 1 hour later on Mar 10, 2024 than the day before. There was more light in the evening.

Also called Spring Forward, Summer Time, and Daylight Savings Time.

More info:
Daylight Saving 2024 Starts in Canada
DST 2024 Starts in the USA

Nov 3

Back 1 hour

Nov 3, 2024 - Daylight Saving Time Ends

When local daylight time is about to reach
Sunday, November 3, 2024, 2:00:00 am clocks are turned backward 1 hour to
Sunday, November 3, 2024, 1:00:00 am local standard time instead.

Sunrise and sunset will be about 1 hour earlier on Nov 3, 2024 than the day before. There will be more light in the morning.

Also called Fall Back and Winter Time.

Other years: 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027

When Does DST Start and End in the US?

Daylight Saving Time (DST) in most of the United States starts on the second Sunday in March and ends on the first Sunday in November.

Which States and Federal Districts use Daylight Saving Time in 2024

Areas in United States using DST in 2024
Areas in United States on standard time all of 2024

DST in States and Federal Districts in USA
(51 in total, 49 where all observe DST, 1 which doesn't observe DST, 1 with parts on DST)

Alabama Mar 10 – Nov 3
Alaska Mar 10 – Nov 3
Arizona (northeast) Mar 10 – Nov 3
Arizona No DST
Arkansas Mar 10 – Nov 3
California Mar 10 – Nov 3
Colorado Mar 10 – Nov 3
Connecticut Mar 10 – Nov 3
Delaware Mar 10 – Nov 3
District of Columbia Mar 10 – Nov 3
Florida Mar 10 – Nov 3
Georgia Mar 10 – Nov 3
Hawaii No DST
Idaho Mar 10 – Nov 3
Illinois Mar 10 – Nov 3
Indiana Mar 10 – Nov 3
Iowa Mar 10 – Nov 3
Kansas Mar 10 – Nov 3
Kentucky Mar 10 – Nov 3
Louisiana Mar 10 – Nov 3
Maine Mar 10 – Nov 3
Maryland Mar 10 – Nov 3
Massachusetts Mar 10 – Nov 3
Michigan Mar 10 – Nov 3
Minnesota Mar 10 – Nov 3
Mississippi Mar 10 – Nov 3
Missouri Mar 10 – Nov 3
Montana Mar 10 – Nov 3
Nebraska Mar 10 – Nov 3
Nevada Mar 10 – Nov 3
New Hampshire Mar 10 – Nov 3
New Jersey Mar 10 – Nov 3
New Mexico Mar 10 – Nov 3
New York Mar 10 – Nov 3
North Carolina Mar 10 – Nov 3
North Dakota Mar 10 – Nov 3
Ohio Mar 10 – Nov 3
Oklahoma Mar 10 – Nov 3
Oregon Mar 10 – Nov 3
Pennsylvania Mar 10 – Nov 3
Rhode Island Mar 10 – Nov 3
South Carolina Mar 10 – Nov 3
South Dakota Mar 10 – Nov 3
Tennessee Mar 10 – Nov 3
Texas Mar 10 – Nov 3
Utah Mar 10 – Nov 3
Vermont Mar 10 – Nov 3
Virginia Mar 10 – Nov 3
Washington Mar 10 – Nov 3
West Virginia Mar 10 – Nov 3
Wisconsin Mar 10 – Nov 3
Wyoming Mar 10 – Nov 3

DST in Other Locations in USA (1 Location)

Palmyra Atoll No DST

Which States Don't Use DST?

Most of Arizona and Hawaii don't use DST. Indiana introduced DST in 2006.

Daylight Saving Time in Dependencies of USA

Dependency Type Daylight Saving Time Period
American Samoa Unincorp. unorg. territory No Daylight Saving Time
Guam Unincorp. org. territory No Daylight Saving Time
Northern Mariana Islands Unincorp. org. territory No Daylight Saving Time
Puerto Rico Unincorp. org. territory No Daylight Saving Time
US Minor Outlying Islands Territory No Daylight Saving Time
US Virgin Islands Unincorp. org. territory No Daylight Saving Time

US dependencies do not use Daylight Saving Time (DST).

Daylight Saving Time History in United States

  • United States first observed Daylight Saving Time in 1918.
  • United States has observed DST for 107 years between 1918 and 2024 (DST in at least one location).
  • See Worldwide DST Statistics

DST in the USA Today

Daylight Saving Time (DST) in the USA starts on the second Sunday in March and ends on the first Sunday in November. The current schedule was introduced in 2007 and follows the Energy Policy Act of 2005.

According to section 110 of the act, the US Department of Transportation (DOT) governs the use of DST. The law does not affect the rights of the states and territories that choose not to observe DST.

Confusing DST Rules

Historically, there were no uniform rules for DST from 1945 to 1966. This caused widespread confusion, especially in transport and broadcasting. The Uniform Time Act of 1966 aligned the switch dates across the USA for the first time.

Following the 1973 oil embargo, the US Congress extended the DST period to 10 months in 1974 and 8 months in 1975, in an effort to save energy.

After the energy crisis was over in 1976, the DST schedule in the US was revised several times. From 1987 to 2006, the country observed DST for about 7 months each year.