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 |
Daylight Saving Time (DST) Not Observed in Year 1800
DST was not in use in 1800.
Other years: 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.
DST in States and Federal Districts in USA in 1800 (51 in total, 51 which don't observe DST) | |||||
|---|---|---|---|---|---|
| Alabama | No DST | Kentucky | No DST | North Dakota | No DST |
| Alaska | No DST | Louisiana | No DST | Ohio | No DST |
| Arizona | No DST | Maine | No DST | Oklahoma | No DST |
| Arkansas | No DST | Maryland | No DST | Oregon | No DST |
| California | No DST | Massachusetts | No DST | Pennsylvania | No DST |
| Colorado | No DST | Michigan | No DST | Rhode Island | No DST |
| Connecticut | No DST | Minnesota | No DST | South Carolina | No DST |
| Delaware | No DST | Mississippi | No DST | South Dakota | No DST |
| District of Columbia | No DST | Missouri | No DST | Tennessee | No DST |
| Florida | No DST | Montana | No DST | Texas | No DST |
| Georgia | No DST | Nebraska | No DST | Utah | No DST |
| Hawaii | No DST | Nevada | No DST | Vermont | No DST |
| Idaho | No DST | New Hampshire | No DST | Virginia | No DST |
| Illinois | No DST | New Jersey | No DST | Washington | No DST |
| Indiana | No DST | New Mexico | No DST | West Virginia | No DST |
| Iowa | No DST | New York | No DST | Wisconsin | No DST |
| Kansas | No DST | North Carolina | No DST | Wyoming | No DST |
DST in Other Locations in USA in 1800 (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.
- 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.