Every fall, the clocks change, and many people feel a little off. You might wake up too early, feel foggy at 3 p.m. or notice the evenings seem suddenly dark. If daylight saving time ends and your mood or sleep takes a hit, you're not imagining things. This guide covers what changes when the clocks go back in 2026, why the first couple of weeks can feel strange, and gentle ways to get your rhythm back.
This article is general information. It isn't a diagnosis, and it isn't a guide to seasonal depression. It's about the short adjustment period after the clocks change.
What changes when the clocks fall back
In Ontario, daylight saving time ends on the first Sunday in November. The National Research Council of Canada lists the change at 2:00 a.m. local time on that day. In 2026, the first Sunday in November is November 1. At 2:00 a.m. that morning, the clocks move back to 1:00 a.m., and you gain an hour.
Two things shift at once. First, the clock on the wall changes. Second, your body's own clock stays where it was for a while. Mornings become brighter by the clock, and evenings get dark an hour earlier. Many phones and computers adjust on their own, while some clocks, like the one in your car or oven, may need a manual change.
Not every part of Canada follows the same schedule, so this article is written for Ontario.
Why the first two weeks can feel off
A one-hour change sounds tiny. But your body runs on a daily rhythm that responds to light, meals, activity and sleep. A research paper on the human body clock explains that moving into or out of daylight saving time disrupts this rhythm, and that studies suggest the system can take several days to fully adjust. It also notes that people differ, and that those who naturally run later may adjust more slowly.
That means a few common experiences can show up:
Waking earlier than usual, even on days you could sleep in
Feeling sleepy earlier in the evening, or wide awake at your old bedtime
Afternoon slumps, because your body expects a different time
A flatter mood or lower energy, especially when the evenings feel gloomy
Irritability or trouble focusing, which often comes with poor sleep
Research on moods is mixed. One large English study of health records found slightly fewer recorded events for anxiety, depression and sleep disorders in the week after the autumn change, and little change in other areas. So the fall change isn't a guaranteed hit to your mood. Some people barely notice it, and some feel it for a while.
Sleep basics for the adjustment window
You don't need a complicated plan. A few steady habits tend to help. MedlinePlus lists several ideas in its healthy sleep guide, and these are the ones that fit this moment:
Keep a regular wake-up time. Going to bed and getting up at the same time every day helps your body settle.
Get daylight during the day. MedlinePlus suggests getting enough sunlight exposure. A walk outside at lunch or in the morning is simple and free.
Watch your caffeine. Try to avoid it in the afternoon and evening.
Skip late naps. MedlinePlus advises not napping after 3 p.m.
Keep your bedroom cool, dark and quiet. And put the screens away before bed.
Wind down. A bath, a book or calm music can help.
Some people ease in by shifting bedtime a little at a time, for example by going to bed 15 minutes later for a few nights. That's a personal choice, not a rule. Whatever you try, give it a few days before deciding whether it works.
A gentle two-week plan
If a plan helps you feel steady, here is a simple one. It's our own suggestion, so change it to fit your life.
The first few days: Don't expect much from yourself. Keep your wake-up time steady, get outside once a day, and go easy on caffeine late in the day.
Days four to seven: Notice what's easing. If you're still waking early, keep your routine and don't chase extra sleep with long naps.
Days eight to fourteen: Check in with yourself. Is your energy back? Is your mood closer to normal? Write down what you notice.
Children and teens can feel the change too. Keep their bedtime and wake-up routines steady and calm, and expect a few grumpy mornings. The same gentle habits apply.
Mood and energy check-ins
It helps to keep an eye on how you're feeling, without making it a big project. A quick check-in once a day can show you what's normal and what's not. Try asking yourself:
How did I sleep last night?
How's my energy right now?
What's my mood like, on a scale from rough to good?
What did I do today that I enjoyed, even a little?
Did I get outside or move my body?
A short note in your phone or on paper is enough. After a week or so, you'll see whether things are settling or staying stuck.
Be kind to yourself in the meantime. Plan lighter days if you can, say yes to what's easy, and keep your routines simple. Evenings may feel earlier, so you might plan a cozy activity, a meal with a friend or a call to someone you like. Small things add warmth to dark nights.
What not to rely on
When mood and sleep dip, it's tempting to reach for a quick fix. We won't recommend any products, and we can't promise that any gadget, light or supplement will work. A few habits are worth more than any item on a shelf:
Steady sleep and wake times, more than any gadget
Daylight and movement, not a special purchase
Time with people, even a short chat
Realistic expectations, because a rough week is not a failure
If you take any medication, raise questions with your prescriber or ask about our Nurse Practitioners, and don't stop anything on your own.
If it isn't settling after two weeks
For most people, a time change is a short bump. But sometimes low mood, poor sleep or anxiety hangs around, or seems bigger than the clocks can explain. If you notice that you've felt down, hopeless or unlike yourself for most of the day, nearly every day, or that your sleep and mood keep sliding, it may be more than a time change.
The National Institute of Mental Health (NIMH) notes that many people feel down or have the "winter blues" when days get shorter, and that sometimes mood changes are more serious. Its page on seasonal affective disorder explains how that pattern is described. We aren't able to tell you what is behind your own mood in an article, and only a proper assessment can do that.
If you'd like support, counselling can help. Our Registered Psychotherapists (RPs) and Registered Social Workers (RSWs) provide therapy, and you can read about our depression counselling and anxiety counselling. Our guide to regulating your emotions may also help on the hard days.
Individual sessions are $130 to $200, and student therapists offer sessions for $0 to $80. There's a one-time $50 setup fee for new clients, and it isn't charged for the free consultation. Depending on your plan, your insurance may cover the full session fee. We see clients in person in Waterloo, Kitchener, Cambridge and Ottawa, and online across Ontario.
If you're struggling
If you or someone you know is thinking about suicide, call or text 9-8-8 any time, or visit 988.ca. In Waterloo Region, Here 24/7 is available at 1-844-437-3247. If someone is in immediate danger, call 911.
Start with a free conversation
You don't have to wait for things to get worse. Book a free 15-minute consultation to talk about your sleep, mood or stress and what support could look like.
Last reviewed: October 2026
Sources
Time zones and daylight saving time, National Research Council Canada
Improving adjustment to daylight saving time transitions with light (Scientific Reports, 2024), peer-reviewed, via NIH PubMed Central
Seasonal Affective Disorder, National Institute of Mental Health (NIMH)