How to Adjust to Daylight Saving Time When Clocks Fall Back

To adjust to daylight saving time when clocks fall back, keep your wake-up time fixed, get bright light and some movement soon after you wake, and go to bed when you feel sleepy instead of forcing the old clock time. Most people settle within a few days. In 2026 the change happens at 2 a.m. on Sunday, November 1.

Published October 11, 2026.

How to adjust to daylight saving time

I have spent years reading sleep studies and turning them into plain advice. I also live in the Pacific Northwest, where the November change lands on top of short, gray afternoons. Every fall I notice the same thing. The extra hour on Sunday is the easy part. The hard week is the one after. It is dark at dinner, and your body still runs on the old schedule.

That mismatch is the whole problem. On Monday your body still expects the old clock, so 9 p.m. on the new clock feels like 10 p.m., and 6 a.m. feels like 7. Early risers often wake before the alarm for a few days.

The American Academy of Sleep Medicine (AASM) calls the fall change a chance to bank sleep, on its Sleep Education site. Its advice is to set your clocks back one hour just before getting into bed, then keep going to bed at that earlier bedtime. The same page notes that at least 30 percent of adults fail to get enough sleep each night. For many people, the extra hour fills a real gap.

A day-by-day plan to adjust to daylight saving time

Mayo Clinic Health System advises against sleeping in an extra hour after a time change. A late Sunday morning feels good. But it pushes your body clock later, the opposite of what the new schedule needs. Its other point is preparation. Making an extra effort to be well rested the week before makes the change easier to absorb.

When does daylight saving time end

NIST, the federal agency that keeps official time, states that daylight saving time ends at 2:00 a.m. on the first Sunday of November. At that moment local time moves back to 1:00 a.m., so the 1 a.m. hour happens twice. For 2026, NIST lists the dates as March 8 to November 1.

Not everyone changes clocks. According to NIST, Hawaii, Arizona, American Samoa, Guam, Puerto Rico and the U.S. Virgin Islands do not observe daylight saving time. The Navajo Nation in Arizona is the exception and does observe it. Phones and computers update on their own, but oven clocks, car dashboards and wall clocks still need a hand.

How does daylight savings affect sleep

Your sleep is timed by an internal clock. NIGMS, part of the National Institutes of Health, describes circadian rhythms as the physical, mental and behavioral changes the body goes through over a 24-hour cycle. A master clock in the brain, a cluster of nerve cells called the suprachiasmatic nucleus, coordinates the rest.

Light is the main signal that clock reads. NIGMS says light and dark have the biggest influence on circadian rhythms. The master clock controls melatonin production based on how much light the eyes receive. In the evening it signals the brain to make more melatonin, which causes sleepiness. A clock change does not move the sun, so for a few days your melatonin timing and your alarm disagree.

NIGMS also notes that travel across time zones and shift work alter the normal sleep-wake cycle. The fall change works like a one-hour trip west. It is small, but it is real, and it explains the groggy Monday that many people blame on something else.

Morning light and your circadian rhythm

Morning light is the fastest lever you have. Dr. Suresh Kotagal is a Mayo Clinic sleep medicine specialist. After the fall change, he told the Mayo Clinic News Network, the best approach is lots of light and physical activity upon awakening. He also suggested a warm shower to shake off morning grogginess as winter sets in.

Evening light works against you. Mayo Clinic’s adult sleep guide says light in the evening can make it harder to fall asleep and advises against long use of screens just before bed. The CDC suggests turning off electronic devices at least 30 minutes before bedtime. So the pattern is simple: bright mornings, dim evenings.

Sleep tips to adjust to daylight saving time

• Keep one wake time. The CDC and Mayo Clinic both advise going to bed and getting up at the same time every day, weekends included.
• Cap naps. Mayo Clinic says to limit naps to no more than one hour and avoid napping late in the day. Mayo Clinic Health System suggests 15 to 20 minutes in the early afternoon if you are sleepy the day after a change.
• Move caffeine earlier. The CDC advises avoiding caffeine in the afternoon or evening. Mayo Clinic notes that caffeine and nicotine take hours to wear off.
• Skip the nightcap. Alcohol may make you drowsy at first, but Mayo Clinic says it can disrupt sleep later in the night. The CDC adds that large meals before bed are best avoided.
• Get up if you cannot sleep. Mayo Clinic suggests leaving bed after about 20 minutes awake and doing something relaxing until you feel sleepy.
• Keep the room cool and quiet. The CDC lists a quiet, relaxing, cool bedroom among its basic sleep habits.

How much sleep are you aiming for? The CDC recommends 7 or more hours for adults 18 to 60. For ages 61 to 64 it is 7 to 9 hours, and for 65 and older, 7 to 8 hours. Teens 13 to 17 need 8 to 10 hours.

Who struggles most to adjust to daylight saving time

Mayo Clinic Health System says the adverse effects of a time change are greatest in teenagers and in people who already have poor sleep habits. That fits the CDC figures above. Teens need more sleep than adults, and anyone running a sleep debt has less room to absorb a shift.

Early risers feel the fall change more than most. If your body already wakes at 5:30, the new clock can turn that into 4:30 for a few mornings. Holding the alarm steady and getting light right away is how you pull that back. Shift workers have it harder still. NIGMS already describes their body clocks as disrupted, so the change stacks on top.

Is daylight saving time bad for your health

The AASM thinks the switching is the problem. In a 2020 position statement in the Journal of Clinical Sleep Medicine, led by Dr. M. Adeel Rishi, the academy called for seasonal time changes to be abolished in favor of fixed, national, year-round standard time. It says the spring move to daylight saving time carries risks that include adverse cardiovascular events, mood disorders and motor vehicle crashes.

Notice what that statement targets. Its main warnings concern the spring transition, when an hour of sleep is lost, though it also links moves both into and out of daylight saving time with sleep disruption and mood disturbances. The fall change returns clocks to standard time, which is the schedule the AASM prefers. So the November switch is the gentler of the two, even if the dark evenings feel worse.

Seasonal depression and daylight savings

Darker evenings arrive with the change. The AASM Sleep Education page points out that it is already getting dark earlier by then. Mayo Clinic experts, writing for the Mayo Clinic News Network, note that shorter, darker days affect the mood of millions of people with seasonal affective disorder. Their suggestions are practical. Open the blinds, sit closer to windows, and talk with your health care provider if that is not enough.

A low mood that lasts for weeks is a different thing from a groggy Monday. If it lingers past the first week or two, talk to a clinician.

Daylight saving time questions

How long does it take to adjust to daylight saving time?

For most people the fall change takes a few days. Dr. Suresh Kotagal of Mayo Clinic said the adjustment may take a few days, and morning light plus activity right after waking speeds it up. Teens and people who already sleep poorly may take longer, according to Mayo Clinic Health System.

What time does daylight saving time end?

NIST says daylight saving time ends at 2:00 a.m. local time on the first Sunday of November, when clocks move back to 1:00 a.m. In 2026 that is Sunday, November 1. Phones update on their own, but most other clocks need to be changed by hand.

Which states don’t observe daylight saving time?

According to NIST, Hawaii and Arizona do not observe daylight saving time, and neither do American Samoa, Guam, Puerto Rico or the U.S. Virgin Islands. The Navajo Nation in Arizona is the exception and does change its clocks with most of the country.

Is it OK to nap after the time change?

A short nap is fine for most people. Mayo Clinic Health System suggests 15 to 20 minutes in the early afternoon if you feel sleepy the day after a time change, not close to bedtime. Mayo Clinic’s general advice is to keep naps under one hour and avoid them late in the day.

This article is for general information only and is not medical advice. Talk to a licensed clinician about your own situation.