Daylight Saving Time 2025.
It’s that time of year again—when we “fall back” and gain an extra hour of sleep. Daylight Saving Time officially ends this Sunday, marking the switch back to standard time across most of the United States. While it means earlier sunsets and darker evenings, it also raises the question: why do we still change our clocks twice a year? In this post, we’ll break down when Daylight Saving Time ends, the history behind it, which states don’t observe it, and what experts say about its effects on our health and daily routines.
Here are some things to be aware of when the clocks “fall back” on Sunday, the last day of daylight saving time. Residents of most states will get an extra hour of sleep this Sunday as Daylight Saving Time ends, which started on March 9.
Indeed, it’s time to “fall back” once more.
Daylight Saving Time will expire again on Sunday when the clock strikes 1 a.m. twice.
Everything you need to know about Daylight Saving Time and the reasons behind the twice-yearly clock change in the US is provided here.
Daylight Saving Time ends when?
This Sunday marks the formal end of Daylight Saving Time, which began on March 9.
This time, we will gain an additional hour as the clocks return from 1:59 a.m. to 1:00 a.m., in contrast to the spring, when we lose an hour since the clock skips straight from 1:59 a.m. to 3 a.m.
In the United States, the sun will start to set sooner as late fall and winter draw near.
What is the duration of Standard Time?
Until spring arrives and Daylight Saving Time resumes, the United States will continue to observe Standard Time, which will result in earlier sunsets and darker evenings.
Thus, Daylight Saving Time will begin on March 8 and terminate on November 1 of the following year.
Why is Daylight Saving Time observed?
The Standard Time Act of 1918 created the practice, according to the U.S. Naval Observatory’s Astronomical Applications Department.
By postponing sunset by an hour, it aimed to maximize daylight during the summer.
The concept was swiftly overturned in 1919 and left to municipal governments, notwithstanding its initial controversy.
It was observed nationally from 1942 to 1945 after being reinstated in the early stages of World War II.
Daylight Saving Time 2025
Following the war, several states had distinct schedules until 1966, when the Uniform Time Act was implemented, standardized Daylight Saving Time’s start and end dates while permitting local deviations.
Those dates have been changed multiple times over the years. However, since 2007, the first Sunday in November has been the end of Daylight Saving Time, which began on the second Sunday in March.
What states don’t adhere to it?
The majority of Arizona and Hawaii do not observe Daylight Saving Time, so their clocks do not change twice a year.
Furthermore, a number of U.S. territory maintain permanent Standard Time, such as American Samoa, Guam, Puerto Rico, the U.S. Virgin Islands, and the Northern Mariana Islands.
Does this system exist in other nations?
Not precisely.
Although most nations have their own definition of “summer time,” they don’t always adhere to the same timetable as the US.
The majority of Daylight Saving Time-using nations in the Northern Hemisphere are found in North America and Europe.
Some Southern Hemisphere nations also observe it, but their “summer time” begins and finishes in the opposite direction from ours because their seasons are inverted.
Only roughly one-third of all nations currently observe Daylight Saving Time, according to the Pew Research Center. At some point in time, almost half of all countries attempted it but eventually gave it up.
Has this practice been discontinued?
Indeed.
The Sunshine Protection Act, which would make Daylight Saving Time permanent throughout the year, was enacted by the U.S. Senate in 2022. Nevertheless, the House of Representatives did not advance the bill.
In January, a revised version of the measure was reintroduced, but it was likewise unsuccessful.
Legislation to maintain either Standard Time or Daylight Saving Time permanently has been explored by nearly every state. Nineteen states have enacted legislation or resolutions endorsing a year-round version throughout the past seven years.
However, states must wait for Congress to enact a national law before they may implement year-round Daylight Saving Time since federal law now prohibits it.
What do medical professionals say?
According to some research, maintaining Daylight Saving Time all year round may lower crime and traffic accidents.
Permanent Daylight Saving Time is opposed by many sleep experts, nevertheless.
They draw attention to the idea of solar time, which states that the sun should be at its greatest point in the sky at noon.
The existing arrangement of alternating between Standard and Daylight Saving Time is preferred by sleep specialists.
In 2022, Dr. Kin Yuen, a fellow of the American Academy of Sleep Medicine and a sleep medicine specialist at the University of California, San Francisco, stated that getting up in the dark can increase cortisol levels, making people feel drowsier and less awake.
Additionally, people prefer to go to bed later during Daylight Saving Time since the sun sets later, which can postpone the body’s generation of melatonin, the hormone that aids in falling asleep.
Daylight Saving Time 2025: Everything to Know as the Clocks Fall Back This Weekend.
