After a long winter of short days, it is finally time to advance.
The watches in the United States will jump from 1:59 am to 3 am on Sunday.
This is what you need to know about summer savings time and why we change the clocks twice a year in the US.
How long will summer schedule last?
Summer schedule will begin on Sunday and the end until November 2. The standard time will have been in force from November 3, 2024 to Sunday.
The change of spring clock differs from autumn. Unlike the fall, when we earn an extra hour and the watches turn, we lose an hour in spring.
But that becomes longer days and the brightest nights as spring and summer months begin. It will remain in force until we return the watches at the standard time, which reallivals on November 2 as we are ready for winter and marked the beginning of a shorter era of days.
Why do we change the watches?
The United States has been observing summer savings time since 1918, with the passage of the Standard Time Law, according to the United States Astronomical Applications Department. It was an effort to extend the summer schedule by pushing the sunset an hour.
The daylight savings time was not fully accepted at the beginning: it was quickly repealed in 1919, which made the change of watches a local matter. The practice was officially restored during the first days of World War II and was observed from 1942 to 45, according to the department.
The saving time of daylight varied according to the State until 1966 with the passage of the uniform time law, which standardized the dates of summer savings time, but allowed states and localities to choose not to participate in practice if they did not want to participate.
Since that law was approved, standardized dates have been changed over the years, according to the department.
But the dates have remained the same since 2007. Since then, the time of salvation of daylight has begun on the second Sunday of March and ended on the first Sunday of November.
Is there any state that does not observe the change of time?
Yes. Residents in Hawaii and most Arizona will not lose an hour of sleep on Sunday night. The two states do not observe the summer savings time and do not change the clocks twice a year, according to the Astronomical Applications Department.
Are anyone trying to change the practice?
The United States Senate approved the Sunshine Protection Law, which would make summer time save permanent time throughout the year and produce the era of changing watches, in March 2022. According to the bill, Hawaii and most Arizona would continue to observe the standard time throughout the year.
But the bill was arrested in the House of Representatives, so the United States will continue to turn the clocks twice a year until a new legislation in the Chamber and the Senate is approved and then signed by the acting president.
President Donald Trump approached the practice this week when a journalist asked him when to “get rid of” summer schedule. “
“I guess people would like to have more late light, but some people want to have more light before because they don’t want to bring their children to school in the dark,” he said, describing the problem “50-50.”
“But many people like it in one way, many people like the other way. He is very even, ”he said. “And usually, I find when that is the case, what else do we have to do?”
Shortly after winning the elections last year, Trump said he and Republicans would try to “eliminate” summer schedule, calling him inconvenient and expensive. It was not clear at that time if he referred to eliminating summer schedule or making it permanent.
Almost all US states have considered the legislation to avoid changing watches, remaining in the standard or summer savings schedule throughout the year.
In the last six years, 20 states have approved bills or resolutions to encode summer savings time throughout the year, according to the National Conference of State Legislatures. But since the Federal Law does not currently allow summer savings time throughout the year, these states are in a participation pattern until Congress approves the bill to make the change.
Is the United States the only country that changes clocks?
No, many other countries observe some version of “Summer Time”, whether it is summer schedule or its own version. However, not everyone does it at the same time as the US.
In the southern hemisphere, for example, the stations are exchanged, so the start and end date of “summer” is reversed by ours, according to the Astronomical Applications Department.
What do health experts say?
Some studies suggest that the use of light savings time throughout the year could reduce the amount of traffic accidents and the amount of crimes, but several experts are against the longest days throughout the year.
According to some sleep experts, the sun must reach the highest point from heaven at noon, or solar time, which occurs during the standard time.
A June 2022 study found that people whose watch times were not closely aligned with the sun had death rates by 22% higher than those living within 30 minutes of solar time.
CORRECTION (March 8, 2025, 3:26 PM ET): An earlier version of this article indicated the incorrect form of the frequency with which the watches change. It is twice a year, not every six months.
