Nov 7, 2021, 2:00 am
|Long Name:||United States of America|
|Time Zones:||7 (Main Country)|
|Total Time Zones:||12 (with dependencies)|
Forward 1 hour
Apr 29, 1979 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, April 29, 1979, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 29, 1979, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 29, 1979 than the day before. There was more light in the evening.
Back 1 hour
Oct 28, 1979 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, October 28, 1979, 2:00:00 am clocks were turned backward 1 hour to
Sunday, October 28, 1979, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 28, 1979 than the day before. There was more light in the morning.
When Does DST Start and End in the US?
Daylight Saving Time (DST) in most of the United States starts on the 2nd Sunday in March and ends on the 1st Sunday in November.
DST in States and Federal Districts in USA in 1979
|Alabama||Apr 29 - Oct 28||Kansas||Apr 29 - Oct 28||North Dakota||Apr 29 - Oct 28|
|Alaska||Apr 29 - Oct 28||Kentucky||Apr 29 - Oct 28||Ohio||Apr 29 - Oct 28|
|Arizona (northeast)||Apr 29 - Oct 28||Louisiana||Apr 29 - Oct 28||Oklahoma||Apr 29 - Oct 28|
|Arizona||No DST||Maine||Apr 29 - Oct 28||Oregon||Apr 29 - Oct 28|
|Arkansas||Apr 29 - Oct 28||Maryland||Apr 29 - Oct 28||Pennsylvania||Apr 29 - Oct 28|
|California||Apr 29 - Oct 28||Massachusetts||Apr 29 - Oct 28||Rhode Island||Apr 29 - Oct 28|
|Colorado||Apr 29 - Oct 28||Michigan||Apr 29 - Oct 28||South Carolina||Apr 29 - Oct 28|
|Connecticut||Apr 29 - Oct 28||Minnesota||Apr 29 - Oct 28||South Dakota||Apr 29 - Oct 28|
|Delaware||Apr 29 - Oct 28||Mississippi||Apr 29 - Oct 28||Tennessee||Apr 29 - Oct 28|
|District of Columbia||Apr 29 - Oct 28||Missouri||Apr 29 - Oct 28||Texas||Apr 29 - Oct 28|
|Florida||Apr 29 - Oct 28||Montana||Apr 29 - Oct 28||Utah||Apr 29 - Oct 28|
|Georgia||Apr 29 - Oct 28||Nebraska||Apr 29 - Oct 28||Vermont||Apr 29 - Oct 28|
|Hawaii||No DST||Nevada||Apr 29 - Oct 28||Virginia||Apr 29 - Oct 28|
|Idaho||Apr 29 - Oct 28||New Hampshire||Apr 29 - Oct 28||Washington||Apr 29 - Oct 28|
|Illinois||Apr 29 - Oct 28||New Jersey||Apr 29 - Oct 28||West Virginia||Apr 29 - Oct 28|
|Indiana||No DST||New Mexico||Apr 29 - Oct 28||Wisconsin||Apr 29 - Oct 28|
|Indiana (north, northwest)||Apr 29 - Oct 28||New York||Apr 29 - Oct 28||Wyoming||Apr 29 - Oct 28|
|Iowa||Apr 29 - Oct 28||North Carolina||Apr 29 - Oct 28|
DST in Other Locations in USA in 1979 (1 Location)
|Palmyra Atoll||No DST|
Which States Don't Use DST?
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 104 years between 1918 and 2021 (DST in at least one location).
- See Worldwide DST Statistics
DST in the USA Today
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.
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.