When Do We Turn Our Clocks Back?
It's almost time to turn the clocks back. When exactly this year do we do this?
On Sunday, November 1, 2015, at 2:00 AM we turn the clocks back one hour to Sunday, November 1, 2015, 1:00 AM local standard time. Sunrise and sunset will be about 1 hour earlier on Nov 1, 2015, than the day before. There will be more light in the morning.
About 70 countries observe Daylight Saving Time, most of the state of Arizona is EXEMPT from DST. Hawaii does not observe the change, either. Also, American Samoa, Guam, Puerto Rico and the Virgin Islands will not Spring Ahead or Fall Back.
Wikipedia says currently, daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 a.m. local time. With a mnemonic wordplay referring to seasons, clocks "spring forward and fall back"—that is, in spring (technically late winter) the clocks are moved forward from 2:00 a.m. to 3:00 a.m., and in fall they are moved back from 2:00 am to 1:00 am.
Reportedly Daylight Savings Time started during WWI to save fuel, and today it's still considered a financial savings. In the average home, 25 percent of all the electricity we use is for lighting and small appliances. By moving the clock ahead one hour, we use less electricity. Newer studies, however, are challenging that long-held reason.
“The Uniform Time Act” was established in 1966. It's the official law stating most states alternate between Daylight Saving Time and Standard Time. Daylight Saving Time is always the second Sunday of March at 2:00 a.m. It lasts until the first Sunday of November at 2:00 a.m (when we set our clocks back one hour).