Daylight Saving Time has a long, strange history
This is a big weekend ahead of us. Not only is it Halloween on Saturday, but later that night, most U.S. residents will be setting their clocks back one hour, marking the end of Daylight Saving Time for the year.
Arizona, Hawaii, and the U.S. territories of Puerto Rico, Virgin Islands, Guam, and American Samoa will just allow time to keep on ticking, and aren’t part of clock-changing.
No state is required to participate in Daylight Saving Time, but the Uniform Time Act of 1966 set a specific time and date to change the clocks. As of August 2005, most of the country falls back the first Sunday in November and springs forward the second Sunday in March.
This Sunday, the first of November, the entire country will be back on Standard Time.