Question: In what year did the NBS revisit the DOT's 1975 study and find traffic fatalities unaffected?
Answer: 1976

Question: What organization made their own estimation in 1995 of a drop in traffic deaths by 1.2%?
Answer: the Insurance Institute for Highway Safety

Question: What's the abbreviation for Single/Double Summer Time?
Answer: SDST

Question: In the two weeks following the time change ending British Summer Time, what percentage hike is there in traffic accidents?
Answer: 11%

Question: How much less, on average, do workers in the U.S. sleep on Mondays after switching to DST, according to the 2009 study?
Answer: 40 minutes

Question: What did the LEAA say was reduced 10% to 13% in Washington, DC during daylight savings?
Answer: violent crime rate

Question: How many cities did the LEAA study before reaching their conclusion?
Answer: two

Question: How many cities of those the LEAA studied showed any reduction in crime?
Answer: one

Question: In what decade did the LEAA conduct their investigation of crime and DST?
Answer: 1970s

Question: There are more fires in the fall and winter because people burn more candles and turn what on to keep warm?
Answer: heating

Question: In addition to smoke detectors, what do fire safety officials suggest people replace batteries in when they set their clocks twice a year?
Answer: carbon monoxide detectors

Question: If your area doesn't observe DST, what can you use instead as a twice-yearly reminder?
Answer: the first days of spring and autumn

Question: What part of your vehicle should you remember to check twice a year?
Answer: lights

Question: What should you check storage spaces in your home for twice-yearly?
Answer: hazardous materials

Question: What do societies with standardized work schedules have more time for because of the increase in afternoon daylight from DST?
Answer: outdoor exercise

Question: What vitamin does sunlight help the human body absorb?
Answer: vitamin D

Question: What chair of the Retinitis Pigmentosa Foundation Fighting Blindness lobbied for an extension to daylight savings in the U.S.?
Answer: Gordon Gund

Question: What cancer can be caused by too much time in the sun?
Answer: skin cancer

Question: Some people say DST can help sufferers of depression because it encourages them to do what?
Answer: rise earlier

Question: What natural rhythm is disrupted by seasonal changes?
Answer: circadian rhythm

Question: In 2005, what country used increased health risks as rationalization for getting rid of DST?
Answer: Kazakhstan

Question: Which Russian president argued that the country should stay in DST year-round because of the stresses of time shifts?
Answer: Dmitri Medvedev

Question: According to the Swedish study in 2008, for how many weekdays following the "spring forward" do you have a higher risk of heart attack?
Answer: three

Question: Do emissions from vehicle exhaust cause lower or higher pollution before dawn?
Answer: higher

Question: Does DST mean more rush hour traffic is on the road before dawn or after?
Answer: before dawn

Question: What kind of pollution is caused by emissions from cars while they're sitting in traffic?
Answer: air pollution

Question: During the fall time shift from 02:00 to 01:00, how many times will a clock show the times between 01:00:00 and 01:59:59?
Answer: twice

Question: What might a clock showing the same times twice in one day lead to?
Answer: confusion

Question: What do people often have trouble remembering to do for DST?
Answer: change their clocks

Question: What added complexity do people working across time zones have to keep track of?
Answer: multiple DST rules

Question: What year did an accident occur at a German facility with molten steel because of the change to DST?
Answer: 1993

Question: For how much more time was the molten steel supposed to cool when the computer mix-up happened in the German steel facility?
Answer: one hour

Question: Who is responsible for testing and even making changing to computer programs when daylight saving rules change?
Answer: software developers

Question: What time system do some computer systems use to avoid the issues of changes in local time?
Answer: Coordinated Universal Time

Question: What type of computer systems use an internal clock based on UTC time?
Answer: Unix-based

Question: Willett's first suggestion was to change clocks by 20 minutes how often?
Answer: weekly

Question: What drawback would changing clocks gradually add to the process?
Answer: complexity

Question: What could be avoided by changing clocks more gradually more often?
Answer: Some clock-shift problems

Question: What does DST inherit from standard time?
Answer: disadvantages

Question: Does daylight savings sometimes minimize or magnify the drawbacks of standard time?
Answer: magnify

Question: Usually, it's recommended that we avoid the sun for how many hours before and after noon?
Answer: two

Question: What kind of guidelines become less precise because of DST?
Answer: sun-exposure guidelines

Question: When using a sundial, we must adjust the reading to reflect natural discrepancies and the effect of what other influence?
Answer: time zone

Question: What author is credited with explaining the usage of daylight saving time and daylight savings time with an "s" in the English Journal of the (American) National Council of Teachers of English?
Answer: Richard Meade

Question: In 1978, according to Meade, which form of the phrase was more commonly used: daylight saving time or daylight savings time?
Answer: daylight savings time

Question: Which form of the phrase is more common in print publications?
Answer: daylight saving time

Question: Joining Merriam-Webster's and the Oxford dictionary, the older form of the phrase without the "s" is still listed first in what dictionary?
Answer: American Heritage

Question: Along with "daylight saving" and "daylight savings," what alternate form does Merriam-Webster's include?
Answer: daylight time

Question: Which term did Willett use in his 1907 proposal to refer to DST?
Answer: daylight saving

Question: What phrase had replaced daylight saving time by 1911 as Willett's proposal evolved into draft legislation?
Answer: summer time

Question: What word do speakers of Dutch use for DST?
Answer: zomertijd

Question: What term do Italians use for DST that literally translates as "legal time"?
Answer: ora legale

Question: What does the Italian term for their winter time, ora solare, translate to in English?
Answer: solar time

Question: What usually changes when a place observes DST?
Answer: The name of local time

Question: What word does American English swap out for "daylight" when referring to time zones?
Answer: standard

Question: In American English, what is the equivalent of Pacific Standard Time?
Answer: Pacific Daylight Time

Question: When the UK changes their clocks forward in the spring, what do they call the time they're then observing?
Answer: British Summer Time

Question: What word is often added to the names of time zones when used in British English?
Answer: summer

Question: What phrase is often used in North America when speaking about DST?
Answer: spring forward, fall back

Question: What is a language like "spring forward, fall back" that acts as a trigger for memory called?
Answer: mnemonic

Question: What does "spring forward, fall back" help people remember?
Answer: which direction to shift clocks

Question: What can cause issues with installed computer systems?
Answer: Changes to DST rules

Question: What year did DST rules change in North America?
Answer: 2007

Question: What did many existing computer systems that relied on time zones need because of the DST rule changes?
Answer: upgrades

Question: In addition to calendaring programs, what kind of programs were most impacted by the changes?
Answer: email