Daylight Saving Time in the United States
In the United States Daylight Saving Time begins at 2:00 a.m. local time on the second Sunday in March. On the first Sunday in November areas on Daylight Saving Time return to Standard Time at 2:00 a.m. When Daylight Saving Time begins in the United States turn your clocks ahead one hour. At the end of Daylight Saving Time turn your clocks back one hour.
United States Daylight Saving Time Start and End Dates
| Year | DST Begins at 2 a.m. | DST Ends at 2 a.m. |
| 2024 | March 10 | November 3 |
| 2025 | March 9 | November 2 |
| 2026 | March 8 | November 1 |
Previous Years Start and End Dates
| Year | DST Begins at 2 a.m. | DST Ends at 2 a.m. |
| 2023 | March 12 | November 5 |
| 2022 | March 13 | November 6 |
| 2021 | March 14 | November 7 |
| 2020 | March 8 | November 1 |
| 2019 | March 10 | November 3 |
| 2018 | March 11 | November 4 |
| 2017 | March 12 | November 5 |
| 2016 | March 13 | November 6 |
| 2015 | March 08 | November 1 |
| 2014 | March 09 | November 2 |
| 2013 | March 10 | November 3 |
| 2012 | March 11 | November 4 |
| 2011 | March 13 | November 6 |
| 2010 | March 14 | November 7 |
| 2009 | March 08 | November 1 |
The names and abbreviations frequently used to indicate the current local time in each time zone change along with Daylight Saving Time. Eastern Standard Time (EST) becomes Eastern Daylight Time (EDT), and so forth. Arizona, Puerto Rico, Hawaii, U.S. Virgin Islands and American Samoa do not observe Daylight Saving Time.
In the United States, Under the Uniform Time Act, the Department of Transportation is in charge of time zones in the United States and ensuring that jurisdictions observing Daylight Saving Time begin and end on the same date.
On Monday August 8, 2005 President Bush signed into law a broad energy bill that extended Daylight Saving Time by four weeks beginning in 2007. As a result of the provisions in the bill Daylight Saving Time now begins three weeks earlier on the second Sunday in March and ends on the first Sunday in November. The United States had previously observed Daylight Saving Time from the first Sunday in April through the last Sunday in October.