This week the clocks will soon be set back for the end of Daylight Saving Time, but when exactly will the time change?

Under the terms of the Energy Policy Act of 2005, daylight saving time begins on the second Sunday in March and ends on the first Sunday in November. On these days the clocks are either moved forward or back by one hour.

This year, the end date will fall on November 3rd, with clocks going back an hour at 2 a.m., giving Illinoisans an extra hour of sleep.

Here’s what you should know:

What happens after the time change?

The end of daylight saving time marks the transition back to standard time in Illinois.

According to Time and Date, standard time is “the local time in a country or region that does not observe Daylight Saving Time (DST).”

In some countries, standard time is called winter time or standard time. Daylight saving time is then referred to as summer time.

“More than 60% of the world’s countries use standard time year-round,” the website says. “The remaining countries use daylight saving time during the summer months and generally set clocks forward one hour from standard time.”

When does summer time start again?

Daylight saving time returns to the Chicago area on March 9, the second Sunday in March.

At this point, the city will again have nearly 12 hours of daylight and sunset will occur shortly after 7 p.m

Which states don’t observe daylight saving time?

The annual time change will take place in Illinois and almost all US states except two:

Arizona (although some Native American tribes observe daylight saving time in their territories) and Hawaii.

Daylight saving time is also not observed in US territories such as Puerto Rico, American Samoa, Guam and the US Virgin Islands.

Why do we change the clocks every year?

Daylight saving time has been around for more than 100 years; According to the Library of Congress, it was originally founded in 1918 to save energy costs during World War I. The law was repealed about a year later due to the end of the war, but was implemented again during World War II. It was introduced to save fuel and “promote national security and defense” and was therefore called “wartime.”

The law was repealed a second time after the war ended to allow states to set their own standard time, the Library of Congress explained.

Daylight saving time later became the standard in the United States until the Uniform Time Act of 1966 was passed, which mandated standard time nationwide within established time zones.

Which is better: summer time or winter time?

The issue of daylight saving time versus standard time has been hotly debated, particularly in recent years when lawmakers proposed the possibility of moving to permanent daylight saving time.

Sleep experts sometimes advocate a permanent standard time. But some experts say switching to permanent daylight saving time would be worse.

“Permanent standard time would basically mean that we keep what I consider to be biologically correct time all year round. And I say biologically correct because our bodies are more used to it and have evolved to keep the correct time.” “Over the years, time has been considered standard time,” said Dr. James Rowley, professor of medicine at Rush University and former president of the American Academy of Sleep Medicine, in an interview with NBC Chicago. “Due to the permanent summer time, special problems arise in winter. It’s great to have an extra hour of sunlight in the evening, although I always remind people that we have just as much sun in the summer, whether it’s daylight or winter time, but that seems like an hour later, but in winter The sunrise is much later, and that is biologically very problematic because we need sunshine in the morning to set our daily rhythm.”

Previous legislative proposals pushed for a permanent daylight savings time change, but that bill ultimately failed and no new bill was brought forward for a vote.

Therefore, the clocks continue to change twice a year.

The American Academy of Sleep Medicine has been pushing for a move to permanent standard time for several years.

“By causing the human internal clock to be out of sync with the natural environment, daylight saving time increases risks to our physical health, mental well-being and public safety,” says Dr. M. Adeel Rishi, chairman of the AASM Public Safety Committee and a pulmonary, sleep medicine and critical care specialist at Indiana University Health in Indianapolis, said in a statement. “Permanent standard time is the optimal choice for health and safety.”

Experts cited a “growing body of evidence” in recent years.

“Permanent standard time helps synchronize the internal clock with the rising and setting of the sun,” said Dr. James A. Rowley, president of the AASM, in a press release. “This natural synchrony is optimal for healthy sleep, and sleep is essential for health, mood, performance and safety.”

It also echoes similar views from other organizations, including the National Sleep Foundation, which said: “Seasonal time changes impact sleep health and should be eliminated.”

Permanent daylight saving time would result in later sunrises across much of the U.S., with some states not seeing a sunrise until after 9 a.m. during parts of the year.

“The sun in the morning actually helps us sleep at night. And of course the other problem is that it gets darker later in the morning, which brings its own issues with safety, driving and people walking. “Parents are definitely concerned about their children going to school in the dark,” Rowley said. “If we had permanent daylight saving time, most of the United States wouldn’t see sunrise until after 8 a.m., and in the northern states – you know, the particularly northern states like Minnesota, Montana and the Dakotas – the sun wouldn’t come until after 9 a.m. seems.” And that’s why the American Academy of Sleep Medicine firmly believes that we should have permanent standard time, not permanent daylight saving time.

Still, Rowley pointed out that no legislation is currently being discussed that would push a move to permanent daylight saving time, so a change is unlikely in the near future.

While clocks are still changing, Rowley noted that growing evidence suggests that the body never fully adjusts to daylight saving time — even between spring and fall.

“Losing that hour of sleep (in the spring) just makes some people more anxious, some more depressed, some more irritable. So that can be quite problematic. The problem is that, even in the long term, we think we are adapting.” Given this change, there is actually evidence that we are not fully adapting to the change, so we are still at increased risk for exposed to all of these things,” he said. “Also, as I mentioned, we need sunshine in the morning so we can fall asleep at night. But in the summer, when we have too much light until late in the evening, it actually prevents us from falling asleep. So if we have that, “extra light” in the evening actually prevents sleep, so it also has long-term consequences.”