Prepare yourself emotionally for this weekend: you're about to lose an hour of sleep.
Daylight saving time begins at 2 a.m. on March 10, 2024, the second Sunday in March. The morning will stay dark a little longer than usual, but that also means daylight will extend an hour longer into the afternoon and evening.
By the miracle of modern technology, your smartphones and watches will automatically adapt to change. But if you have an analog clock, appliances that tell time, or antique clocks in your home, you'll need to set them yourself.
Here's everything you need to know about time change and why it means savings and not “savings” as it's often mispronounced.
What is daylight saving time?
Daylight saving time is the time between March and November when most Americans adjust their clocks by one hour.
We lose an hour in March to “move forward” by adding more daylight in the afternoons. And we gain an hour in November and “go back” by adding more daylight in the mornings.
The first day of spring is Tuesday, March 19, nine days after the time change.
Is daylight saving time ending in Michigan?
Pressure to stop changing clocks came before Congress in recent years, when the U.S. Senate unanimously passed the Sun Protection Law in 2022, a bill that would make daylight saving time permanent. However, it did not happen in United States House of Representatives and therefore was not signed into law by President Joe Biden.
TO 2023 version of the law. He also remained inactive in Congress.
Does the time change affect health?
Americans experience physical health problems caused by biannual time changes, according to a study by the National Institutes of Health. They included strokes, heart attacks, accidents and mood swings.
Some scientists suggest that your biological clock is broken.
Other studies link the start of daylight saving time to an increase in car accidents.
Why is daylight saving time important?
Daylight saving time is when “daylight” begins an hour later in the morning and lasts an hour longer at night, depending on the National Institute of Standards and Technology.
This allows the time of day to remain coordinated with the time when most people are active outdoors. Daylight saving time is supposed to save energy, since during the warmer months most will be outside and not at home, which saves energy.
What states do not participate in daylight saving time?
Not all states participate in daylight saving time. Arizona and Hawaii are the only two that have opted out.
The US territories not participating are Guam, the Northern Mariana Islands, American Samoa, the Virgin Islands and Puerto Rico, according to a Knox News article.
Why don't Arizona and Hawaii participate in daylight saving time?
Hawaii opted out of the Uniform Time Law because of how close the state is to the equator. It makes daylight saving time unnecessary because the sun rises and sets at approximately the same time every day all year round.
Arizona participated once in 1967, but energy consumption got out of control. Most of the country was saving fuel, but in Arizona they were using more energy to handle the extra hour of daylight, according to an article from Arizona State University.
The Navajo Nation, which is located in the northeast corner of the state, continues to participate in daylight saving time.
When will daylight saving time end in 2024?
Daylight saving time ends on Sunday, November 3the first Sunday in November.
When does daylight saving time start in 2025?
Daylight saving time will begin again on Sunday, March 9, 2025.
Why isn't it 'savings'?
The correct term is daylight saving time (not daylight saving time), according to USA Today. However, the incorrect term “daylight saving time” is commonly used, especially in Australia, Canada and the United States. It's also supposed to be lowercase, not uppercase, according to the Associated Press stylebook.
USA TODAY Emily De Letter and Frank Witsil of the Free Press contributed to this story.
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