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Time Change 2024 in the United States

Next change:
Nov
3
1 hour Back

3 Nov 2024, 02:00

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

10 Mar

Forward 1 hour

10 Mar 2024 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, 10 March 2024, 02:00:00 clocks were turned forward 1 hour to
Sunday, 10 March 2024, 03:00:00 local daylight time instead.

Sunrise and sunset were about 1 hour later on 10 Mar 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

3 Nov

Back 1 hour

3 Nov 2024 - Daylight Saving Time Ends

When local daylight time is about to reach
Sunday, 3 November 2024, 02:00:00 clocks are turned backward 1 hour to
Sunday, 3 November 2024, 01:00:00 local standard time instead.

Sunrise and sunset will be about 1 hour earlier on 3 Nov 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)

Alabama10 Mar – 3 NovKentucky10 Mar – 3 NovOhio10 Mar – 3 Nov
Alaska10 Mar – 3 NovLouisiana10 Mar – 3 NovOklahoma10 Mar – 3 Nov
Arizona (northeast)10 Mar – 3 NovMaine10 Mar – 3 NovOregon10 Mar – 3 Nov
ArizonaNo DSTMaryland10 Mar – 3 NovPennsylvania10 Mar – 3 Nov
Arkansas10 Mar – 3 NovMassachusetts10 Mar – 3 NovRhode Island10 Mar – 3 Nov
California10 Mar – 3 NovMichigan10 Mar – 3 NovSouth Carolina10 Mar – 3 Nov
Colorado10 Mar – 3 NovMinnesota10 Mar – 3 NovSouth Dakota10 Mar – 3 Nov
Connecticut10 Mar – 3 NovMississippi10 Mar – 3 NovTennessee10 Mar – 3 Nov
Delaware10 Mar – 3 NovMissouri10 Mar – 3 NovTexas10 Mar – 3 Nov
District of Columbia10 Mar – 3 NovMontana10 Mar – 3 NovUtah10 Mar – 3 Nov
Florida10 Mar – 3 NovNebraska10 Mar – 3 NovVermont10 Mar – 3 Nov
Georgia10 Mar – 3 NovNevada10 Mar – 3 NovVirginia10 Mar – 3 Nov
HawaiiNo DSTNew Hampshire10 Mar – 3 NovWashington10 Mar – 3 Nov
Idaho10 Mar – 3 NovNew Jersey10 Mar – 3 NovWest Virginia10 Mar – 3 Nov
Illinois10 Mar – 3 NovNew Mexico10 Mar – 3 NovWisconsin10 Mar – 3 Nov
Indiana10 Mar – 3 NovNew York10 Mar – 3 NovWyoming10 Mar – 3 Nov
Iowa10 Mar – 3 NovNorth Carolina10 Mar – 3 Nov
Kansas10 Mar – 3 NovNorth Dakota10 Mar – 3 Nov

DST in Other Locations in USA (1 Location)

Palmyra AtollNo 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

DependencyTypeDaylight Saving Time Period
American SamoaUnincorp. unorg. territoryNo Daylight Saving Time
GuamUnincorp. org. territoryNo Daylight Saving Time
Northern Mariana IslandsUnincorp. org. territoryNo Daylight Saving Time
Puerto RicoUnincorp. org. territoryNo Daylight Saving Time
US Minor Outlying IslandsTerritoryNo Daylight Saving Time
US Virgin IslandsUnincorp. org. territoryNo 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.