Day light saving time

Why do we have it?

The idea is to save electricity because there are more hours of natural light. Studies have shown the savings to be fairly nominal—the time change leading people to switch on the lights earlier in the morning instead or cranking up the air conditioning, for example.

What is the history of daylight saving time?

Fun fact: The idea was first floated in 1784 by one Benjamin Franklin. While minister of France, hewrote the essay "An Economical Project for Diminishing the Cost of Light."

Daylight saving time, a source of confusion and mystery for many, will strike again this weekend. The idea of resetting clocks forward an hour in the spring and back an hour in the fall was first suggested by Benjamin Franklin in his essay "An Economical Project for Diminishing the Cost of Light," which was published in the Journal de Paris in April 1784.

Franklin's suggestion was largely overlooked until it was brought up again in 1907 by Englishman William Willett, who penned a pamphlet called "The Waste of Daylight." Although the British House of Commons rejected Willett's proposal to advance the clock one hour in the spring and back again in autumn in 1908, British Summer Time was introduced by the Parliament in 1916.

Many other countries change their clocks when adjusting to summer time, but the United States only began doing so towards the end of World War I in an attempt to conserve energy. The House of Representatives voted 252 to 40 to pass a law "to save daylight," with the official first daylight saving time taking place on March 15, 1918. This was initially met with much resistance, according Michael Downing, author of the book "Spring Forward: The Annual Madness of Daylight Saving Time."

Why 2 a.m.?

The time change is set for 2 a.m. because it was decided to be the least disruptive time of day. Moving time forward or back an hour at that time doesn’t change the date, which avoids confusion, and most people are asleep, or if people do work on a Sunday, it’s usually later than 2 a.m.