Don’t forget to set your clocks forward!
Report by Paula Antolini
March 7, 2015 11:59AM EDT
At 2 a.m. Sunday, all clocks are to be set forward one hour. Reset your clocks before retiring Saturday night.
Spring Forward: The clocks are set ahead one hour during Spring Forward. In 2015, this occurs on Sunday, March 8.
Fall Back: The clocks are set back one hour during Fall Back. In 2015, this occurs on Sunday, November 1.
What is Daylight Savings? Daylight Savings Time, or DST, begins on the second Sunday of March and ends on the first Sunday of November. In March, you should expect to move your clock forward one hour for Spring Forward from 2am standard time to 3am DST, and in November, clocks are moved back one hour from 2am DST to 1am standard time. The phrase “spring forward, fall back” is a helpful reminder of these time changes.
Daylight Saving Time (DST) is a way of making better use of the natural daylight by setting your clock forward one hour during the summer months, and back again in the fall.
Clocks back or forward?
To remember which way to set your watch, keep in mind “spring forward, fall back”. You set your clock forward in the spring when DST starts (= lose one hour), and back one hour when DST ends in the fall (= regain one hour).
USA, Central America, Canada, Europe, Asia, northern Africa
Many countries in the Northern Hemisphere (north of the equator) observe DST, but not all. Daylight saving time is in use between March and April and ends between September and November as the countries return to Standard Time.
Australia, New Zealand, South America, southern Africa
In the Southern Hemisphere (south of the equator) the participating countries start DST between September and November and ends between March and April. Standard time begins in the southern hemisphere between March–April and ends between September–November.
Why use DST at all?
Many countries use DST to make better use of the natural daylight
in the evenings, and many don’t. The difference in light is most noticable in the areas close to the Poles, i.e. furthest away from the Earth’s equator.
Some studies show that DST could lead to fewer road accidents and injuries by supplying more daylight during the hours more people use the roads. Other studies claim that people’s health might suffer due to DST changes.
DST is also used to reduce the amount of energy needed for artificial lighting during the evening hours. However, many studies disagree about DST’s energy savings and while some studies show a positive outcome, others do not.
DST first used in Germany
US inventor and politician Benjamin Franklin first proposed the concept of DST in 1784, but modern Daylight Saving Time first saw the light of day, in 1895 when an entomologist from New Zealand, George Vernon Hudson, presented a proposal for a two-hour daylight saving shift. However,
Germany was the first country to implement DST on April 30, 1916 when the clocks were set forward at 11 pm (23:00).
Not always 1 hour
Today clocks are almost always set one hour back or ahead, but throughout history there have been several variations, like half adjustment (30 minutes) or double adjustment (two hours), and adjustments of 20 and 40 minutes have also been used. A two-hour adjustment was used in several countries during the 1940s and elsewhere at times.
A half adjustment was sometimes used in New Zealand in the first half of the 20th century. Australia’s Lord Howe Island (UTC+10:30) follows a DST schedule in which clocks are moved 30 minutes forward to UTC+11, which is Australian Eastern Daylight Time (AEDT) during DST.
Note: The above info. from timeanddate.com