seasonal adjustment of clocks

Daylight Saving Time?
Daylight Saving Time
Daylight Saving Time
saving daylight save 1 000 000 tons of coal nmah ac0433 0000103
Daylight saving time (DST), also referred to as daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks … Wikipedia
🌐
Wikipedia
en.wikipedia.org › wiki › Daylight_saving_time
Daylight saving time - Wikipedia
11 hours ago - In most countries that observe seasonal daylight saving time, clocks revert in winter to standard time. An exception exists in Ireland, where its winter clock has the same offset (UTC+00:00) and legal name as that in Britain (Greenwich Mean Time)—but while its summer clock also has the same ...
🌐
Quora
quora.com › What-does-daylight-saving-time-actually-mean-How-does-it-work-as-its-still-very-confusing-for-me-Is-it-a-must
What does daylight saving time actually mean? How does it work as it's still very confusing for me? Is it a must? - Quora
Answer (1 of 3): In the USA, over night tonight, March 7th, we adjust to clocks to skip from 1:59:59 to 3:00:00 skipping the two o'clock hour completely. Later in the fall, we have two early morning hours to get back to standard time. When we're on Daylight Saving Time, the adjustments to the cl...
🌐
TimeAndDate
timeanddate.com › time zones › daylight saving time › transition to dst
How Does Daylight Saving Time Work?
November 1, 2025 - When Daylight Saving Time (DST) starts, clocks go forward; when it ends, clocks go back. So what is Daylight Saving? Do we gain an hour or lose an hour?
🌐
The Old Farmer's Almanac
almanac.com › content › when-daylight-saving-time
Daylight Saving Time 2026: When Does the Time Change? | The Old Farmer's Almanac
3 weeks ago - Daylight Saving Time begins on Sunday, March 8, 2026, at 2:00 A.M. As we sleep, the clocks "fall back" one hour! See details about the history of "saving daylight" and why we still observe DST today.
🌐
Encyclopedia Britannica
britannica.com › procon
Daylight Saving Time | Pros, Cons, Debate, Arguments, Standard Time, Clock Change, & Time | Britannica
1 month ago - 31, 1918, as a wartime effort (during World War I) to save an hour’s worth of fuel each day to light lamps and coal to heat homes. Repealed nationwide in 1919, some individual localities (such as New York City) maintained the biannual time change in what Time magazine called “a chaos of clocks” until 1966, when the Uniform Time Act made DST consistent nationwide. [8][48] What's the point of Daylight Saving Time?Have you ever wondered what people mean when they say "spring forward" and "fall back?"(more)
🌐
Cambridge Dictionary
dictionary.cambridge.org › dictionary › english › daylight-saving-time
DAYLIGHT SAVING TIME - Cambridge English Dictionary
daylight saving time, at summer time See all meanings · Word of the Day · accommodation · UK · Your browser doesn't support HTML5 audio · /əˌkɒm.əˈdeɪ.ʃən/ US · Your browser doesn't support HTML5 audio · /əˌkɑː.məˈdeɪ.ʃən/ a place to stay or live About this ·
🌐
TimeAndDate
timeanddate.com › time zones › daylight saving time › “saving” or “savings”?
Daylight Savings Time or Daylight Saving Time?
November 2, 2025 - In that sense, DST “saves” light, especially during early spring. Standard time refers to time without DST. ... Another commonly used term for DST is “Summer Time.” In the United Kingdom, the DST time zone is called British Summer Time (BST). During standard time, Greenwich Mean Time (GMT) is used.
🌐
TIME
time.com › living › sleep
Daylight Saving Time, March 2025: What You Need to Know | TIME
March 6, 2025 - On the first Sunday in November, clocks go back one hour at 2 a.m. That means the sun will appear to rise and set a little earlier during months when the weather is typically colder.
🌐
Dictionary.com
dictionary.com › browse › daylight-saving-time
DAYLIGHT-SAVING TIME Definition & Meaning | Dictionary.com
Time during which clocks are set one hour or more ahead of standard time to provide more daylight at the end of the working day during late spring, summer, and early fall.
Find elsewhere
🌐
Merriam-Webster
merriam-webster.com › dictionary › saving time
Saving Time | Definition & Meaning - Merriam-Webster
SAVING TIME is contained in 2 matches in Merriam-Webster Dictionary. Learn definitions, uses, and phrases with saving time.
🌐
Collins Dictionary
collinsdictionary.com › dictionary › english › daylight-saving-time
DAYLIGHT SAVING TIME definition and meaning | Collins English Dictionary
2 meanings: US time set usually one hour ahead of the local standard time, widely adopted in the summer to provide extra.... Click for more definitions.
🌐
FOX Weather
foxweather.com › lifestyle › the-history-of-daylight-saving-time
What is the history of daylight saving time? | Fox Weather
November 1, 2025 - The concept of daylight saving time can be attributed to three people, according to Prerau. The first person was Benjamin Franklin in the 18th century. Franklin noted that waking up closer to sunrise gave him more hours of daylight to illuminate his home. This allowed him to use fewer smoky and expensive candles, which helped him save energy.
🌐
Congress.gov
congress.gov › crs-product › R45208
Daylight Saving Time (DST) | Congress.gov | Library of Congress
Daylight Saving Time (DST) is a period of the year between spring and fall when clocks in most parts of the United States are set one hour ahead of standard time. DST begins on the second Sunday in March and ends on the first Sunday in November. The beginning and ending dates are set in statute.
🌐
Encyclopedia Britannica
britannica.com › technology › engineering › mechanical engineering
Daylight Saving Time | When, Definition, History, & Facts | Britannica
1 month ago - Daylight Saving Time, system for uniformly advancing clocks, so as to extend daylight hours during conventional waking time in the summer months. In countries in the Northern Hemisphere, clocks are usually set ahead one hour in late March or ...
🌐
IBM
ibm.com › docs › en › cics-ts › 6.x
Effect of daylight saving time changes
Many countries operate a policy of adjusting clocks by one hour at the beginning and end of summer to effect what is commonly referred to as daylight saving.
🌐
Sleep Foundation
sleepfoundation.org › circadian rhythm
Daylight Saving Time: Everything You Need to Know
The non-DST period between November and March is known as standard time. The idea behind DST is to adjust our clocks so that there is more daylight in the evening. In this way, proponents of DST see it as a way to “save” natural light.
Published   October 6, 2025
🌐
NBC News
nbcnews.com › news › us-news › daylight-saving-time-ends-what-to-know-clocks-fall-back-rcna240998
Daylight saving time is ending Sunday. Here's what to know as clocks 'fall back.'
Daylight saving time started March 9 and ends Sunday, when residents of almost all states will gain an extra hour.
Published   October 31, 2025
🌐
HowStuffWorks
science.howstuffworks.com › innovation › everyday-innovations › daylight-saving-time.htm
What Is the Point of Daylight Saving Time? | HowStuffWorks
October 30, 2025 - We humans aren't complete slaves to time. We've devised ways to pack an extra hour of sunshine into our day, thanks to daylight saving time. But who came up with this idea and why do so many people loathe it?
🌐
Collins Dictionary
collinsdictionary.com › dictionary › english › time-saving
TIME-SAVING definition and meaning | Collins English Dictionary
3 weeks ago - Shortening the length of time required for an operation, activity, etc.... Click for English pronunciations, examples sentences, video.
🌐
Citizen-Times
citizen-times.com › story › news › 2025 › 10 › 29 › when-does-daylight-saving-time-end-2025-when-we-fall-back-time-change-nc › 86930410007
When does daylight saving time end? It's finally time to 'fall back'
October 29, 2025 - Daylight saving time, which goes by a variety of other names including daylight savings time, daylight time and summer time, means that we set clocks forward by one hour during the summer months and back one hour in the fall.