How daylight saving time works
Lindsey Reiser takes a look at the history of daylight saving time.
Daylight Saving Time
Will daylight saving time become permanent after House passes bill?
Lawmakers are one step closer to making daylight saving time permanent after the House passed a bill with overwhelming support.
House passes bill to make daylight saving time permanent
The measure also allows states to opt out if they take action before the federal law is enacted.
House passes daylight saving bill
Lawmakers in the House passed a bill on Tuesday with bipartisan support that would make daylight saving time permanent and end the twice-a-year time change. It's now up to the Senate to take up the legislation. Caitlin Huey-Burns has more.
Daylight saving time arrives for 2026. Here's what to know.
The time change known as daylight savings starts Sunday, March 8, 2026. Most Americans lose an hour of sleep when clocks "spring forward."
Why was daylight saving time started? Here's what you need to know.
Longer and lighter days were supposed to save energy, reduce traffic accidents and help people become more active. Governments thought daylight saving time would save money.
These states, U.S. territories don't observe daylight saving time
Two states don't do daylight saving time and won't "spring forward" as the clocks change for 2026.
Daylight saving time ends as clocks "fall back"
Daylight saving time ended on Sunday, Nov. 2, 2025, when the clocks fell back and we gained an hour.
How daylight saving time impacts our health
This weekend marks the end of daylight saving time as most of the U.S. "falls back" and gains an hour of sleep. Sleep expert Shelby Harris, a clinical associate professor at Einstein Medical School in New York City, joins "CBS Mornings Plus" to explain how the time change impacts our health.
Study: Seasonal time shifts may harm health
Most Americans will set their clocks back on Nov. 2 for daylight saving time, but a new study suggests the two annual time changes may actually be harmful to our health. Jamie Zeitzer, co-author of the study and co-director of the Stanford University Center for Sleep and Circadian Sciences, joins CBS News to unpack the findings.
Senate daylight saving time hearing: "Stuck with this since World War I"
President Trump has suggested he supports eliminating daylight saving time, although he's also called it a "50/50 issue."
Senate hearing on daylight saving time
The Senate Committee on Commerce, Science, and Transportation heard testimony on the effects of daylight saving time. CBS News' Shanelle Kaul reports.
The time has changed for daylight saving 2025. Here's what to know.
Daylight saving time in 2025, when clocks change by an hour, has started. Here's a look at when exactly we "spring forward."
Is daylight saving time bad for your health? A neurologist explains.
Researchers are discovering that "springing ahead" each March for daylight saving time is connected with serious negative health effects.
Trump says Republicans will try to end daylight saving time
President-elect Donald Trump said Republicans will try to end the decades-long ritual of changing the clocks twice a year.
When does daylight saving time end in 2024?
The end to daylight saving time means our clocks "fall back" early Sunday, Nov. 3, 2024. But why do we have to adjust the time twice a year?
Daylight saving time's health impact
While most Americans are looking forward to gaining an extra hour of sleep when daylight saving time ends on Sunday, some experts warn it could be harmful to the body and mind. Dr. Norman Rosenthal, clinical professor of psychiatry at Georgetown University, joins CBS News to discuss how "falling back" could disrupt health.
The story behind Daylight Saving Time
The 2005 Energy Policy Act extended Daylight Saving Time by four weeks. Scott MacFarlane explains the law's origins.
3 tips to avoid winter blues when clocks "fall back" from daylight saving time
Gaining an extra hour of sleep as daylight saving time ends might sound like a win, but experts say "falling back" can have some health consequences. Here's some advice to help you cope.
We lose an hour of sleep to daylight saving. Here's how to cope
Daylight saving time for 2024 is here, which means we lost an hour of sleep as we "spring forward." Here's how to deal with the time change, according to experts.
Time change for daylight saving happened overnight. What to know.
Clocks "spring forward" when daylight saving time begins on Sunday, March 10, 2024.
Luke Burbank on taking "spring ahead" to the next level
It's that time of year, when Daylight Saving Time costs us an hour of sleep, but gifts us another hour of light at the end of the day. Correspondent Luke Burbank is ready for more.
Luke Burbank on taking "spring ahead" to the next level
It's that time of year, when Daylight Saving Time costs us an hour of sleep, but gifts us another hour of light at the end of the day. Correspondent Luke Burbank is ready for more.
How does daylight saving time work in March? What to know this year.
Daylight saving time begins this year in the early hours of Sunday, March 10, giving us longer, sunnier evenings until Nov. 3, 2024. Here's what to know about how the time change works.
How researchers seek to perfect the study of time
Clocks will spring forward at 2 a.m. on Sunday, March 10. And inside the lab at the National Institute of Standards and Technology near Denver, Colorado, scientists and the federal government are perfecting their atomic clock. Scott MacFarlane has more.
Live
Iran claims strikes on ships in Strait of Hormuz and U.S. base in Kuwait
Iran says it targeted U.S. facilities in Kuwait and struck two tankers in the Strait of Hormuz that were under "aerial escort" from the U.S.
Trump says Hamas agreed to next phase of Gaza peace deal, including disarmament
The president says Hamas and his international "Board of Peace" have agreed on the next steps in a peace deal that includes Hamas' disarmament in the Gaza Strip.
U.S. investigating whether Iran was behind cyberattack on Minnesota water systems
Malicious cyber activity affected technology at more than 30 community water systems across Minnesota this week, leading authorities to dig into whether Iranian actors are behind the attack, CBS News has learned.
First on CBS
Democrats demand training information on ICE agent who killed immigrant in Maine
Two Democrats are demanding details and records about the training of an ICE officer who shot and killed a Colombian immigrant in Maine, according to a letter obtained by CBS News.
Spain deploys military to Morocco border after migrant crossings, 24 deaths
At least 18 migrants died trying to reach the Spanish territory of Ceuta after tens of thousands of people breached the frontier with Morocco and poured into the tiny Spanish territory.
Saudi, Israeli leaders try to shape Trump's decisions on Iran conflict
As conflict potentially expands in the region, Trump met with the Saudi defense minister and with Benjamin Netanyahu. The Israeli prime minister counseled Trump on three options for the war.
People with disabilities fear service cuts as DOJ questions legal protections
The Department of Justice in June issued a legal opinion saying states aren't required to provide services that help people with disabilities remain in their homes.
Exclusive
Pentagon weighs eliminating civilian tenure at military academies, draft memo says
The Pentagon is considering a sweeping remake of military higher education, including an end to civilian tenure and a "line-by-line" review of courses, according to a draft memo obtained by CBS News.
Netflix sued for allegedly losing unreleased Nicolas Cage movie
Lawsuit alleges that a drive storing $45 million spy film starring Nicolas Cage was "stolen right off a Netflix desk."
U.S.
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Anthropic reveals Claude "gained unauthorized access" to "real-world systems"
Anthropic's artificial intelligence model Claude "gained unauthorized access" to three outside organizations on three separate occasions during testing.
U.S. investigating if Iran was behind cyberattack on Minnesota water systems
Malicious cyber activity affected technology at more than 30 community water systems across Minnesota this week, leading authorities to dig into whether Iranian actors are behind the attack, CBS News has learned.
Stolen Civil War-era cannonballs found in suitcase at Alabama airport
Law enforcement officials say a set of stolen Civil War-era cannonballs was discovered in a passenger's suitcase during a routine security screening at Alabama's Gulf Shores International Airport.
Hair sample from Nancy Guthrie's home inconclusive as search hits 6-month mark
A hair sample found at the home of Nancy Guthrie came back inconclusive after undergoing testing, Pima County Sheriff Chris Nanos revealed Thursday.
American Airlines makes its flight refund policy more restrictive
American Airlines is tightening its flight refund and cancellation policy. Here's what to know.
MoneyWatch
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Anthropic reveals Claude "gained unauthorized access" to "real-world systems"
Anthropic's artificial intelligence model Claude "gained unauthorized access" to three outside organizations on three separate occasions during testing.
American Airlines makes its flight refund policy more restrictive
American Airlines is tightening its flight refund and cancellation policy. Here's what to know.
Poll analysis on cost of living and whether political parties have answers
Big majorities of Americans have said their incomes are not keeping up with inflation, and feel the president isn't focused enough on the issue.
Netflix sued for allegedly losing unreleased Nicolas Cage movie
Lawsuit alleges that a drive storing $45 million spy film starring Nicolas Cage was "stolen right off a Netflix desk."
Mortgage rates hit highest level in a year amid inflation fears
Mortgage rates are drifting higher as the Fed's interest rate decision and war in the Middle East fuel inflation concerns.
Politics
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First on CBS
Democrats demand training information on ICE agent who killed immigrant in Maine
Two Democrats are demanding details and records about the training of an ICE officer who shot and killed a Colombian immigrant in Maine, according to a letter obtained by CBS News.
People with disabilities fear service cuts as DOJ questions legal protections
The Department of Justice in June issued a legal opinion saying states aren't required to provide services that help people with disabilities remain in their homes.
Ukrainian ambassador tracks how Kyiv's relationship with D.C. has evolved
The outgoing Ukrainian ambassador to the U.S. says Ukraine has been able to combat what she said characterized as a prior, erroneous narrative that Russia was winning the war, now in its fifth year.
Exclusive
Pentagon weighs eliminating civilian tenure at military academies, draft memo says
The Pentagon is considering a sweeping remake of military higher education, including an end to civilian tenure and a "line-by-line" review of courses, according to a draft memo obtained by CBS News.
Trump says Hamas agreed to next phase of Gaza peace deal, including disarmament
President Trump said Hamas and his international "Board of Peace" have agreed on the next steps in a peace deal that includes Hamas' disarmament in the Gaza Strip.
HealthWatch
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People with disabilities fear service cuts as DOJ questions legal protections
The Department of Justice in June issued a legal opinion saying states aren't required to provide services that help people with disabilities remain in their homes.
Senate committee advances Dr. Erica Schwartz to be Trump's CDC director
If confirmed by the full Senate, Dr. Erica Schwartz would become the 22nd director of the Atlanta-based Centers for Disease Control and Prevention.
Millions of kids have caffeine in their diet. It's not all coming from soda.
On any given day, kids consume an average of 19.4 milligrams of caffeine, which is about two-thirds of what's in a can of Coke, according to a new report.
Extended Interview: Jay Bhattacharya
Rob Gutman speaks with Jay Bhattacharya, director of the National Institutes of Health and acting director of the CDC, about Dr. Anthony Fauci's actions during the pandemic, the possible origins of COVID-19, vaccines and more.
Acting CDC director on Fauci's testimony
Dr. Jay Bhattacharya, the director of the National Institutes of Health and the acting director of the Centers for Disease Control and Prevention spoke with Matt Gutman about Dr. Anthony Fauci's hearing on Wednesday and other health issues that affect many Americans.
World
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Live
Iran claims strikes on ships in Strait of Hormuz and U.S. base in Kuwait
Iran says it targeted U.S. facilities in Kuwait and struck two tankers in the Strait of Hormuz that were under "aerial escort" from the U.S.
Famed climber Nirmal Purja among 10 missing on Pakistan peak; 4 bodies found
Rescuers searching for 10 climbers missing on Pakistan's Broad Peak located four bodies and were looking for the others, officials said. Acclaimed climber Nirmal Purja was among the missing.
Ukrainian ambassador tracks how Kyiv's relationship with D.C. has evolved
The outgoing Ukrainian ambassador to the U.S. says Ukraine has been able to combat what she said characterized as a prior, erroneous narrative that Russia was winning the war, now in its fifth year.
Trump says Hamas agreed to next phase of Gaza peace deal, including disarmament
President Trump said Hamas and his international "Board of Peace" have agreed on the next steps in a peace deal that includes Hamas' disarmament in the Gaza Strip.
What the fires burning near Bordeaux's vineyards could mean for France's wine industry
In France, wildfires this summer have already burned an area four times the size of Paris, driving hundreds of thousands of people from their homes.
Entertainment
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Entertainment
"Spider-Man: Brand New Day" swings into theaters
Just weeks after "Supergirl" underperformed at the box office, the ninth live-action Spider-Man film since 2002 is expected to premiere with a projected global opening of as much as $465 million. Marlow Stern, chief correspondent at Variety, joins CBS News to discuss.
From the archives: Spider-Man creator Stan Lee
The creator of such superheroes as Spider-Man, Iron Man, the Avengers and the Fantastic Four, Stan Lee (1922-2018) was a comic book genius whose characters made him a superhero himself to legions of fans. In this report that originally aired Jan. 17, 2016, Lee talked with "Sunday Morning" correspondent Lee Cowan about his marvelous life story that, fittingly, was published in comic-book form.
Netflix sued for allegedly losing unreleased Nicolas Cage movie
Lawsuit alleges that a drive storing $45 million spy film starring Nicolas Cage was "stolen right off a Netflix desk."
From the archives: "Once" songwriter Glen Hansard
Irish singer-songwriter Glen Hansard, an Oscar-winner for "Once" (which became a Tony Award-winning musical), died July 29, 2026 at age 56. In this March 17, 2013 "Sunday Morning" profile, Hansard talked with Anthony Mason about growing up as a street performer in Dublin, and his meteoric rise to fame as a member of the rock band The Frames and (with Markéta Irglová) half of the duo The Swell Season. Also: A web extra featuring Hansard busking on the streets of New York City.
Actor Jared Leto facing allegations
Actor Jared Leto is facing allegations of criminal sexual conduct, which he has denied. In a new BBC documentary, four women accuse Leto of targeting them when they were underage. Lilia Luciano has the latest.
Technology
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Anthropic reveals Claude "gained unauthorized access" to "real-world systems"
Anthropic's artificial intelligence model Claude "gained unauthorized access" to three outside organizations on three separate occasions during testing.
Altman expresses support for AI slowdown
Emily Birnbaum, a corporate lobbying reporter at Bloomberg News, joins "The Daily Report" to discuss what OpenAI CEO Sam Altman's lobbying efforts in Washington, D.C., mean for the industry as he voices his support for pacing AI development.
How AI powered robots are helping small farms
From labor shortages to environmental impacts, farmers are looking to AI to help revolutionize the agriculture industry. One California startup, Farm-ng, is tapping into the power of AI and robotics to perform a wide range of tasks, including seeding, weeding and harvesting.
OpenAI CEO meets with key Trump advisers
OpenAI CEO Sam Altman is meeting with high-ranking Trump administration advisers following his talks with lawmakers on Capitol Hill. This comes as some tech workers criticize the rapid development of AI, demanding that the government create new safety regulations. CBS News' Jo Ling Kent has more.
Inside the advancements in AI
CBS News contributor Matt Shumer, a venture capitalist, told "CBS Mornings" artificial intelligence advancements are moving "way more quickly than anyone anticipated." Shumer addresses recent developments in AI and its impact on the workforce.
Science
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Science
How plants feel
Science shows us that, even though plants don't have brains, they seem to have a nervous system that responds to touch in remarkable ways. Robert Krulwich and puppeteer Barnaby Dixon explore the science of thigmomorphogenesis (the phenomenon of plants reacting to outside stimulae), a discussion that plants the seeds for a song.
Nearly 30 beluga whales sent to the U.S.
Nearly 30 beluga whales were sent to aquariums across the U.S. in a multinational emergency operation after their home aquarium in Canada shuttered. Jared Ochacher reports.
SpaceX launches first rocket since IPO
Elon Musk's aerospace company, SpaceX, launched its massive Starship rocket in its first test flight since the company went public. Since achieving the largest IPO in history, SpaceX's stock has dropped drastically. Mark Strassmann takes a look.
Wildfire smoke continues to shroud U.S.
Millions of people are enduring dangerous air quality as Canadian wildfire smoke shrouds the skies. Jonathan Overpeck, dean of the School for Environment and Sustainability at the University of Michigan, explains how climate change is worsening wildfires.
How AI data centers impact the environment
New York has become the first state to impose a temporary moratorium on data center development while state lawmakers lay the groundwork to assess environmental and social impacts. Dr. Mike Weinstein, the director of sustainability at Southern New Hampshire University, explains what we know about the wider environmental impact data centers.
Crime
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Crime
Police kill suspect in deadly kidnapping
On Wednesday night in Chino Hills, about 30 miles south of Los Angeles, deputies fatally shot a suspect after a deadly kidnapping. Carter Evans reports as authorities piece together exactly what happened.
Hair sample from Nancy Guthrie's home inconclusive as search hits 6-month mark
A hair sample found at the home of Nancy Guthrie came back inconclusive after undergoing testing, Pima County Sheriff Chris Nanos revealed Thursday.
First responders testify in Lindsay Clancy trial
First responders testified Thursday in the trial of Lindsay Clancy, who admitted to killing her three children but pleaded not guilty to three counts of first-degree murder. CBS News correspondent Shanelle Kaul has the details.
Peptide vendor sentenced to nearly 6 years in prison: "An incredible trail of harm"
A federal judge sentenced the owner of a peptide company to nearly six years in prison after finding the business deceived customers and sold products that were adulterated with steroids.
Details on Colin Gray sentence
Colin Gray, father of Appalache High School shooter Colt Gray, was sentenced to 15 years in prison on Thursday for his part in the 2024 tragedy perpetrated by his son. CBS News legal contributor Rebecca Roiphe has more.
Space
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Russian Soyuz brings three home after 8 months at space station
The Soyuz MS-28 landing in Kazakhstan brought a 241-day stay in space to a successful conclusion.
SpaceX's Super Heavy-Starship blasts off on 13th test flight
An upgraded version of the world's most powerful rocket is key to landing NASA astronauts on the moon in the agency's Artemis program.
Meteorite that hit home contains "alien world chemistry," experts say
When scientists examined the preserved fragments of a meteorite that crashed in 2024, they found brine-like fluids and key molecules.
Russian Soyuz rocket launches fresh crew to space station
The new crew will replace three other Soyuz fliers wrapping up a 240-day stay aboard the International Space Station.
Astronomers discover sugar in space that's also found in raspberries
The sugar, called erythrulose, lurks in what's called the interstellar medium: thin clouds of gas and dust littered between stars.
Latest Galleries
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Notable Deaths in 2026
A look back at the esteemed personalities who've left us this year, who'd touched us with their innovation, creativity and humanity.
Summer music highlights of 2026
Summer is the time to enjoy live music, indoors and out. Scroll through our gallery of some of 2026's leading musical acts, featuring images by CBS News photojournalist Jake Barlow and photographers Ed Spinelli and Kirstine Walton.
Photos show celebrations at Obama Presidential Center
The Obama Presidential Center, museum and library opens in Chicago with a star-studded grand opening ceremony and public watch party on Midway Plaisance.
Evidence in the Barbara Kendhammer case
Does the evidence show a cover-up, or was Todd Kendhammer wrongfully convicted for the murder of his wife?
Timeline: The disappearance of George Smith
Family seeks answers in death of newlywed who disappeared in 2005 while on Mediterranean honeymoon cruise.
Latest CBS News Videos
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Latest CBS News Videos
Trump on next phase of Gaza peace deal
President Trump says Hamas, the Iran-backed militant group in Gaza, has agreed to the next phase of the peace deal offered last fall to end the war between Israel and Hamas. CBS News' Courtney Kealy reports.
"Spider-Man: Brand New Day" swings into theaters
Just weeks after "Supergirl" underperformed at the box office, the ninth live-action Spider-Man film since 2002 is expected to premiere with a projected global opening of as much as $465 million. Marlow Stern, chief correspondent at Variety, joins CBS News to discuss.
Boat company owner donates profits to charity
Eddie Smith, the owner of Grady-White Boats, could have sold his business for hundreds of millions of dollars. Instead, he decided to turn the company over to a charitable trust.
Legal analysis on who decides election rules
President Trump is fighting with 23 states and the District of Columbia over election rules and mail-in ballots. CBS News legal contributor Jessica Levinson joins to discuss.
Sheriff discusses Nancy Guthrie case
Nearly six months after Nancy Guthrie was kidnapped from her home in Tucson, Arizona, Jonathan Vigliotti sat down with the sheriff at the forefront of the investigation.