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daylight saving time

News Digest DOT 27-14

Daylight Saving Time to Begin Sunday, March 9 for Most Americans.  Most of the nation will return to daylight saving time at 2 a.m. on Sunday, March 9, 2014, when clocks will be turned ahead one hour, providing an additional hour of daylight in the evening.  Under law, daylight saving time is observed from the second Sunday in March to the first Sunday in November, with the nation returning to standard time starting Sunday, Nov.

Updated: Friday, March 7, 2014

Daylight Saving Time

Under the Uniform Time Act, as amended, States may exempt themselves from observing Daylight Saving Time by State law.  If a State chooses to observe Daylight Saving Time, it must begin and end on federally mandated dates.

Updated: Monday, March 10, 2014

Uniform Time

The U.S. Department of Transportation (DOT) oversees the Nation's time zones and the uniform observance of Daylight Saving Time.  The oversight of time zones was assigned to DOT because time standards were first instituted by the railroad industry. 

Updated: Friday, February 13, 2015
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