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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: 13 (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 and less light in the morning.

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 and less light in the evening.

Also called Fall Back and Winter Time.

More info:
Daylight Saving 2024 Ends in Canada
Hate Clock Changes?
Still Falling Back: DST Ends in the US 2024

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)

AlabamaMar 10 – Nov 3KentuckyMar 10 – Nov 3OhioMar 10 – Nov 3
AlaskaMar 10 – Nov 3LouisianaMar 10 – Nov 3OklahomaMar 10 – Nov 3
Arizona (northeast)Mar 10 – Nov 3MaineMar 10 – Nov 3OregonMar 10 – Nov 3
ArizonaNo DSTMarylandMar 10 – Nov 3PennsylvaniaMar 10 – Nov 3
ArkansasMar 10 – Nov 3MassachusettsMar 10 – Nov 3Rhode IslandMar 10 – Nov 3
CaliforniaMar 10 – Nov 3MichiganMar 10 – Nov 3South CarolinaMar 10 – Nov 3
ColoradoMar 10 – Nov 3MinnesotaMar 10 – Nov 3South DakotaMar 10 – Nov 3
ConnecticutMar 10 – Nov 3MississippiMar 10 – Nov 3TennesseeMar 10 – Nov 3
DelawareMar 10 – Nov 3MissouriMar 10 – Nov 3TexasMar 10 – Nov 3
District of ColumbiaMar 10 – Nov 3MontanaMar 10 – Nov 3UtahMar 10 – Nov 3
FloridaMar 10 – Nov 3NebraskaMar 10 – Nov 3VermontMar 10 – Nov 3
GeorgiaMar 10 – Nov 3NevadaMar 10 – Nov 3VirginiaMar 10 – Nov 3
HawaiiNo DSTNew HampshireMar 10 – Nov 3WashingtonMar 10 – Nov 3
IdahoMar 10 – Nov 3New JerseyMar 10 – Nov 3West VirginiaMar 10 – Nov 3
IllinoisMar 10 – Nov 3New MexicoMar 10 – Nov 3WisconsinMar 10 – Nov 3
IndianaMar 10 – Nov 3New YorkMar 10 – Nov 3WyomingMar 10 – Nov 3
IowaMar 10 – Nov 3North CarolinaMar 10 – Nov 3
KansasMar 10 – Nov 3North DakotaMar 10 – Nov 3

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.