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Time Change 1975 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

Note: Some regions of USA use a different period of DST than shown below.

Feb 23

Forward 1 hour

Feb 23, 1975 - Daylight Saving Time Started

When local standard time was about to reach
Sunday, February 23, 1975, 2:00:00 am clocks were turned forward 1 hour to
Sunday, February 23, 1975, 3:00:00 am local daylight time instead.

Sunrise and sunset were about 1 hour later on Feb 23, 1975 than the day before. There was more light in the evening.

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

Oct 26

Back 1 hour

Oct 26, 1975 - Daylight Saving Time Ended

When local daylight time was about to reach
Sunday, October 26, 1975, 2:00:00 am clocks were turned backward 1 hour to
Sunday, October 26, 1975, 1:00:00 am local standard time instead.

Sunrise and sunset were about 1 hour earlier on Oct 26, 1975 than the day before. There was more light in the morning.

Also called Fall Back and Winter Time.

Other years: 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 2024

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 1975

Areas in United States using DST in 1975
Areas in United States on standard time all of 1975

Daylight Saving Time Info

DST in States and Federal Districts in USA in 1975
(51 in total, 48 where all observe DST, 1 which doesn't observe DST, 2 with parts on DST)

AlabamaFeb 23 – Oct 26KansasFeb 23 – Oct 26North CarolinaFeb 23 – Oct 26
AlaskaFeb 23 – Oct 26KentuckyFeb 23 – Oct 26North DakotaFeb 23 – Oct 26
Arizona (northeast)Feb 23 – Oct 26LouisianaFeb 23 – Oct 26OhioFeb 23 – Oct 26
ArizonaNo DSTMaineFeb 23 – Oct 26OklahomaFeb 23 – Oct 26
ArkansasFeb 23 – Oct 26MarylandFeb 23 – Oct 26OregonFeb 23 – Oct 26
CaliforniaFeb 23 – Oct 26MassachusettsFeb 23 – Oct 26PennsylvaniaFeb 23 – Oct 26
ColoradoFeb 23 – Oct 26Michigan (northwest)Feb 23 – Oct 26Rhode IslandFeb 23 – Oct 26
ConnecticutFeb 23 – Oct 26MichiganApr 27 – Oct 26South CarolinaFeb 23 – Oct 26
DelawareFeb 23 – Oct 26MinnesotaFeb 23 – Oct 26South DakotaFeb 23 – Oct 26
District of ColumbiaFeb 23 – Oct 26MississippiFeb 23 – Oct 26TennesseeFeb 23 – Oct 26
FloridaFeb 23 – Oct 26MissouriFeb 23 – Oct 26TexasFeb 23 – Oct 26
GeorgiaFeb 23 – Oct 26MontanaFeb 23 – Oct 26UtahFeb 23 – Oct 26
HawaiiNo DSTNebraskaFeb 23 – Oct 26VermontFeb 23 – Oct 26
IdahoFeb 23 – Oct 26NevadaFeb 23 – Oct 26VirginiaFeb 23 – Oct 26
IllinoisFeb 23 – Oct 26New HampshireFeb 23 – Oct 26WashingtonFeb 23 – Oct 26
IndianaNo DSTNew JerseyFeb 23 – Oct 26West VirginiaFeb 23 – Oct 26
Indiana (north, northwest)Feb 23 – Oct 26New MexicoFeb 23 – Oct 26WisconsinFeb 23 – Oct 26
IowaFeb 23 – Oct 26New YorkFeb 23 – Oct 26WyomingFeb 23 – Oct 26

DST in Other Locations in USA in 1975 (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

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.

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