Daylight saving time officially ends at 2 a.m. this first Sunday in November.
"It was a big deal - some businesses said they weren't going to comply, and refused the time change saying it was going to affect their bottom line", he said.
So whether you call it Daylight Saving Time or Daylight Savings Time; the saving of time actually comes to an end this weekend.
The bill, first enacted a decade ago, was meant to ease the country's energy problems.
Wright, a professor of integrative physiology and director of CU's Sleep and Chronobiology Laboratory, said the inverse is true when daylight saving time begins in March. Order finally came in 1966 with the enactment of the Uniform Time Act, which standardized daylight saving time from the last Sunday in April to the last Sunday in October, although states had the option of remaining on standard time year-round.
Consider it an early holiday gift: an extra hour to sleep in Sunday morning - unless the sun coming up an hour earlier and peeking through the bedroom window disrupts your slumber. Indeed, some studies show it may increase energy usage, especially in warm climates where longer periods of sunlight now mean more people cranking the air conditioning later into the evening.More news: Note 8 Freezing for Some Users, Samsung Promises Fix
Other parts of Canada that keep to standard time include northeastern British Columbia, the East Kootenay region of southeastern B.C., three communities in northwestern Ontario, the eastern tip of Quebec and Southampton Island in Nunavut.
After the national repeal in 1919, some states and cities, including New York City and Chicago, continued to shift their clocks. States can exempt themselves from participation.
Farming groups have also expressed anti-daylight time views, saying it has a significant adverse impact on rural families, businesses and communities. About 70 countries around the world observe DLS.
Some countries refer to "Daylight Saving Time" as "Summer Time".