Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Daylight Savings Time: 7 Surprising Things You May Not Know
National Geographic ^ | March 6, 2015 | Brian Handwerk

Posted on 03/07/2015 4:29:31 PM PST by SamAdams76

Many Americans will spring forward an hour to mark the beginning of daylight savings time (DST)—also known as daylight saving time—at 2 a.m. on Sunday, March 8. Time will fall back to standard time again on Sunday, November 1, when DST ends.

The annual adventure in altered timekeeping has produced some entertaining and exasperating situations over the past century. (Related: "Time to Move On? The Case Against Daylight Saving Time.")

Here are some strange-but-true facts you might not know about daylight savings time.

Cities Once Kept Their Own Time

Each U.S. state and territory is free to ignore daylight savings time, so residents of Arizona (except those on the Navajo Nation), Hawaii, Puerto Rico, the Virgin Islands, and other territories won't move their clocks this weekend.

If these exceptions seem confusing, the situation was far worse 50 years ago, according to Tufts University professor Michael Downing, author of Spring Forward: The Annual Madness of Daylight Saving Time. Before the U.S. Uniform Time Act of 1966, DST was often observed very locally—and chaos was the result.

"In 1965 there were 130 cities in the country with populations of 100,000 or more," Downing explained. "Fifty-nine did not observe daylight saving.

"Of the 71 that did, there were at least 20 different adoption dates. In Minnesota, St. Paul was on one time, Minneapolis was on a different time, and Duluth was on Wisconsin time. In fact, somebody even found a Minneapolis office building in which the different floors of the building were observing different time zones because they were the offices of different counties."

Things were so confused that in 1965 the director of the U.S. Naval Observatory, the country's center for strategic timekeeping, announced that the dissent over DST had made the world's greatest economic and military superpower the world's worst timekeeper, Downing noted.

Daylight Savings Was Based on Assumptions

Why did this tempest of timekeeping confusion begin in the first place?

Daylight savings time was first realized on a grand scale during World War I. It started in Germany, then caught on in a number of nations that wanted to reduce lighting demand and save coal for the war effort. During WWII, the U.S. observed year-round DST for the same reasons.

But it turns out that these sweeping time changes—mostly intended to save energy—weren't based on any evidence. (Related: "Extended Daylight Saving Time Not an Energy Saver?")

"We've all obeyed this dictum for a hundred years, and ... no one can really explain why," Downing said, adding that the first real attempt to quantify the supposed energy savings of DST occurred in 1966.

Governments Don't Get it Either

Governments have had just as much trouble keeping track of time changes as everyone else.

When Yugoslavia's president, Marshal Tito, visited the U.S. in 1963, his welcome was botched because of daylight savings time, Downing reported. "Tito's plane landed in a Virginia town that hadn't advanced its clocks with the rest of the state, so nobody was there to greet him."

"That same year, Pentagon officials were two hours late for an important military conference in Alaska because no one knew what time it was out there on the Russian border," Downing added. (See "Permanent Daylight Saving Time? Might Boost Tourism, Efficiency.")

Russia has had its own issues with managing DST, as have most other nations.

The Soviet Union first observed daylight savings time in the spring of 1930 after an edict by Josef Stalin. For some reason, however, the Soviet Union never turned the clocks back in the fall of that year.

"So for the duration of World War II, and the much longer Cold War, nobody really had an accurate sense of what time it was in Russia," Downing said.

Dirty Secret: We Like DST

Last year an opinion poll on DST taken by the Utah Governor's Office of Economic Development produced almost 14,000 written comments—a total volume nearly equal to the length of War and Peace.

"The strong, repetitive drumbeat in those comments was convenience," explained the development office's Michael O'Malley. "Many people don't want to move their clocks, whether it's backwards, forwards, or sideways. They just want to pick a time and stick with it."

Despite an apparent dislike of daylight savings, actions speak louder than words.

Downing noted that although countries like the U.S. and Great Britain instituted year-round DST at times, as during WWII, they still haven't succeeded in eliminating the changing of the clocks. (Also see "'Leap Second' to Be Added to the Weekend.")

"In the spring, people's fingers get itchy, and without fail they have moved the clocks to adopt a double daylight saving time by moving it an extra hour ahead, or just gone back to the regular old plan.

"I think people have come to believe and been converted to the idea that we are owed an extra hour of evening light in the spring," he added.

As proof, he notes that while many cities and states have petitioned for time zone changes over the years, 95 percent of such petitions have been for a movement to the eastern time zone—essentially the adoption of daylight savings time.

TV Networks Lose, Golf Courses Win

Daylight savings time has some unexpected winners and losers when it comes to how Americans spend their time and money.

Research shows that given an extra hour of evening daylight, many Americans use the time to go out and do things rather than watch the television shows they'd normally view at that time.

Nielsen ratings during the hours impacted by the change show large declines during the first week of DST—as much as 10 to 15 percent, even for popular shows.

"If the sun sets at 7:00, then more people are inside at 7:00. If it sets at 8:00, more people are inside at 8:00," said David Prerau, author of the book Seize the Daylight: The Curious and Contentious Story of Daylight Saving Time.

"They are still going to watch some TV, they are just going to watch it later."

Theaters also take a hit, Prerau added. "When it's dark early, people may feel it's a good night to take in a play or a movie. But when it's going to be light until 8:00, they may decide to take a walk or do something outside."

That means recreational facilities from golf courses to garden supply centers see a spike when DST begins.

"That hour of evening light might make the difference whether somebody feels they have the time to go out and play tennis or start a garden, or whether they don't," Prerau said.

Criminals Hate Daylight Savings Time

Thieves tend to do their dirty work under the cover of darkness. So creating an extra hour of evening light helps people get home during daylight hours, which appears to drop crime rates dramatically.

A 2012 study examined crime rates during the three weeks preceding and following the spring move onto DST.

During the extra hour of evening daylight, robberies decreased by 40 percent, according to data from the National Incident-Based Reporting System. Murder and rape rates also went down, though it's hard to say how much because the exact time such crimes are committed is often unknown.

The extra hour of light during the morning hours produced no increase in crime. "These types of crimes are just rare in the mornings, so the earlier hour of daylight has no impact in terms of rising crime rates," Prerau added.

Evening crime rates rose again, research showed, when daylight savings time ended.

Farmers Aren't Fans

Farmers have long been labeled as big backers of daylight savings time, or even credited with getting the practice going. Whether this idea came from farmers' early rising habits or some other reason, it's a myth.

"From the very beginning, when DST was proposed in Britain's Parliament in 1908, until today, farmers have been the number one group against daylight saving time," said Prerau.

Traditionally, farmers have set their schedule by the sun, and that's mostly still the case. But when the rest of society shifts an hour of light out of the morning hours, farmers have less daylight to handle morning tasks like getting their wares to market. Those charged with handling livestock like dairy cows say it's difficult for the clock-averse animals to adjust.

U.S. farmers don't put up the same kind of organized opposition to DST that they once did, but across the world, farmers are still the first group that would like to see the practice end, Prerau said.

"In fact, right now there is an ongoing fight in Queensland, Australia, where there was actually a daylight saving political party," he noted.

"People on the coast, which is primarily a resort economy, want the extra daylight in the evening, but the people living in the outback are mostly farmers and they don't want to observe daylight saving."


TOPICS: Astronomy
KEYWORDS:
Navigation: use the links below to view more comments.
first previous 1-20 ... 61-8081-100101-120 ... 141-158 next last
To: Zuse

I’d like to turn the calendar back to about 1985...


81 posted on 03/07/2015 7:22:53 PM PST by Ronniesque
[ Post Reply | Private Reply | To 35 | View Replies]

To: nopardons

If you think your body is going to have any problem with it ... sleep in an hour (by the clock) ... :-) ...

If you actually do have a problem past two or three days, I would advise going in and seeing your doctor.


82 posted on 03/07/2015 7:23:34 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 73 | View Replies]

To: Star Traveler
We don't get a say in the matter; never have done. WHY DON'T YOU KNOW THAT ? And you do NOT "know" most people, nor what they think of DST. You twisted what I posted about the nonsensical GLOBAL WARMING/CLIMATE CHANGE garbage. Then claimed the correct position. Yet DST is political time tampering. Wake up and smell the coffee.
83 posted on 03/07/2015 7:23:45 PM PST by nopardons
[ Post Reply | Private Reply | To 75 | View Replies]

To: Star Traveler

Nonsense!
That’s an illogical, unreasonable, and truly silly statement, based on nothing factual.


84 posted on 03/07/2015 7:26:15 PM PST by nopardons
[ Post Reply | Private Reply | To 77 | View Replies]

To: nopardons

The voters in your state can get off DST if they want. But you and I know that the voters don’t agree with you, so they won’t do that.

As for the climate bit ... I don’t know why you would have a problem with what I said about it.


85 posted on 03/07/2015 7:26:41 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 83 | View Replies]

To: nopardons
I'm thinking maybe we should implement DST gradually by changing the clocks ahead five minutes at a time every other week. Then after six months, we reverse the other way so that we are back where we started after one year.

That way we are not losing or gaining too much sleep at one time. Also, it's good to get people to exercise, by running around their house every other week to change all the clocks.

86 posted on 03/07/2015 7:27:28 PM PST by SamAdams76
[ Post Reply | Private Reply | To 73 | View Replies]

To: Mom MD

Then they must be older children, who have, or should have lots of homework, which precludes them from being outside “playing” at 7:00PM or later.


87 posted on 03/07/2015 7:28:03 PM PST by nopardons
[ Post Reply | Private Reply | To 79 | View Replies]

To: nopardons

Okay, if you think that it’s “ME” that wants to “do something” ... I’ll promise you that I will take NO ACTION on this matter ... :-) ...


88 posted on 03/07/2015 7:28:33 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 84 | View Replies]

To: SamAdams76

Pick a damn time at stick with it - year round. This springing forward and falling back crap is a load of horse $#!t. And it doesn’t save anything.


89 posted on 03/07/2015 7:28:50 PM PST by AFreeBird
[ Post Reply | Private Reply | To 1 | View Replies]

To: Ronniesque

Yeah ... if I turned the calendar back to 1985 ... I would sure be a whole lot younger! ... :-) ...


90 posted on 03/07/2015 7:30:28 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 81 | View Replies]

To: Star Traveler

My body has NEVER been able to adjust to the stupid DST and I know other people who have the same problem. It is NOTHING that any doctor sees as a “problem”, nor can it be “fixed”.
It would benefit you to not talk about things you neither know nor understand.


91 posted on 03/07/2015 7:30:44 PM PST by nopardons
[ Post Reply | Private Reply | To 82 | View Replies]

To: AFreeBird

No one in government said you had to change your clocks ... :-) ...

But maybe your employer will ... LOL ...


92 posted on 03/07/2015 7:32:45 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 89 | View Replies]

To: Star Traveler

No, changing DST is NOT anything anyone can vote on.
You’re not making any sense.
And there are a lot of people who voted for that thing in the White House, so that means that there are a lot of very stupid people out there, alive and dead and ILLEGAL voting.
Re your last bit.................weasel words.


93 posted on 03/07/2015 7:33:21 PM PST by nopardons
[ Post Reply | Private Reply | To 85 | View Replies]

To: nopardons

Not if they are smart. Homework is done in school and its Basketball till 8.


94 posted on 03/07/2015 7:33:28 PM PST by eyedigress
[ Post Reply | Private Reply | To 87 | View Replies]

To: nopardons

Well, I obviously have “knowledge of the subject” since I have a body and I change my clocks two times a year. I would say that makes me just as qualified to talk about the time change and its effect on a body ... :-) ...


95 posted on 03/07/2015 7:35:07 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 91 | View Replies]

To: SamAdams76

Oh Sam.............lets just leave it alone and keep time the way it actually is!


96 posted on 03/07/2015 7:35:24 PM PST by nopardons
[ Post Reply | Private Reply | To 86 | View Replies]

To: Star Traveler

Of course YOU don’t want it changed; you’ve already said that you “love” having the government CHANGE TIME for you.
Apparently, you need government to dictate how the universe works, as well.


97 posted on 03/07/2015 7:37:36 PM PST by nopardons
[ Post Reply | Private Reply | To 88 | View Replies]

To: eyedigress

Homework is done in school ?
Then it isn’t enough homework !
Basketball til 8:00 PM?


98 posted on 03/07/2015 7:39:55 PM PST by nopardons
[ Post Reply | Private Reply | To 94 | View Replies]

To: nopardons

Sure it is something you can vote on. Any state can opt out of it. It can be brought up as a referendum for the state.

As far as the climate bit, I can back up my position ... EXACTLY as I stated it ... :-) ...


99 posted on 03/07/2015 7:40:20 PM PST by Star Traveler (Remember to keep the Messiah of Israel in the One-World Government that we look forward to coming)
[ Post Reply | Private Reply | To 93 | View Replies]

To: Star Traveler

It only makes you able to talk about yourself, not others; you government needy person.


100 posted on 03/07/2015 7:41:08 PM PST by nopardons
[ Post Reply | Private Reply | To 95 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-20 ... 61-8081-100101-120 ... 141-158 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson