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
Mar 12, 2017 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, March 12, 2017, 2:00:00 am clocks were turned forward 1 hour to
Sunday, March 12, 2017, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Mar 12, 2017 than the day before. There was more light in the evening.
Back 1 hour
Nov 5, 2017 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, November 5, 2017, 2:00:00 am clocks were turned backward 1 hour to
Sunday, November 5, 2017, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Nov 5, 2017 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.
Which States and Federal Districts use Daylight Saving Time in 2017
DST in States and Federal Districts in USA in 2017
|Alabama||Mar 12 - Nov 5||Kentucky||Mar 12 - Nov 5||Ohio||Mar 12 - Nov 5|
|Alaska||Mar 12 - Nov 5||Louisiana||Mar 12 - Nov 5||Oklahoma||Mar 12 - Nov 5|
|Arizona (northeast)||Mar 12 - Nov 5||Maine||Mar 12 - Nov 5||Oregon||Mar 12 - Nov 5|
|Arizona||No DST||Maryland||Mar 12 - Nov 5||Pennsylvania||Mar 12 - Nov 5|
|Arkansas||Mar 12 - Nov 5||Massachusetts||Mar 12 - Nov 5||Rhode Island||Mar 12 - Nov 5|
|California||Mar 12 - Nov 5||Michigan||Mar 12 - Nov 5||South Carolina||Mar 12 - Nov 5|
|Colorado||Mar 12 - Nov 5||Minnesota||Mar 12 - Nov 5||South Dakota||Mar 12 - Nov 5|
|Connecticut||Mar 12 - Nov 5||Mississippi||Mar 12 - Nov 5||Tennessee||Mar 12 - Nov 5|
|Delaware||Mar 12 - Nov 5||Missouri||Mar 12 - Nov 5||Texas||Mar 12 - Nov 5|
|District of Columbia||Mar 12 - Nov 5||Montana||Mar 12 - Nov 5||Utah||Mar 12 - Nov 5|
|Florida||Mar 12 - Nov 5||Nebraska||Mar 12 - Nov 5||Vermont||Mar 12 - Nov 5|
|Georgia||Mar 12 - Nov 5||Nevada||Mar 12 - Nov 5||Virginia||Mar 12 - Nov 5|
|Hawaii||No DST||New Hampshire||Mar 12 - Nov 5||Washington||Mar 12 - Nov 5|
|Idaho||Mar 12 - Nov 5||New Jersey||Mar 12 - Nov 5||West Virginia||Mar 12 - Nov 5|
|Illinois||Mar 12 - Nov 5||New Mexico||Mar 12 - Nov 5||Wisconsin||Mar 12 - Nov 5|
|Indiana||Mar 12 - Nov 5||New York||Mar 12 - Nov 5||Wyoming||Mar 12 - Nov 5|
|Iowa||Mar 12 - Nov 5||North Carolina||Mar 12 - Nov 5|
|Kansas||Mar 12 - Nov 5||North Dakota||Mar 12 - Nov 5|
DST in Other Locations in USA in 2017 (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.