How to fix your sleep schedule after daylight saving time
To fix your sleep schedule after the clocks change, pick the wake-up time you want on the new clock and keep it every day, weekends included, get outdoor light within an hour of waking, and dim the lights in the evening. Most people settle in 3 to 7 days. Going to bed at the "right" time and hoping isn't enough: the morning sets your body clock, and bedtime follows it.
The two changes are not the same. When the clocks fall back in November, your body is an hour ahead of the clock: you get sleepy too early and wake too early. When they spring forward in March, your body is an hour behind: you can't fall asleep, and the alarm comes in the middle of your night. Below: what each change does, a day-by-day plan for both, what to do if you're still off after a week, and who needs longer.
What the clock change does to your sleep
Your body runs on an internal clock of roughly 24 hours. It decides when you feel sleepy, when you feel alert and when your body temperature and hormones rise and fall. Daylight is its main signal. The clock on the wall changes in one second; the clock in your body moves only about 30 minutes to an hour a day at best, and only if it gets the right light at the right time.
So for a few days after each change, the two disagree. That gap is why people describe it as a small jet lag: the same time-zone mismatch, without the trip.
| Fall back (November) | Spring forward (March) | |
|---|---|---|
| Clocks go | Back 1 hour at 2 a.m. | Forward 1 hour at 2 a.m. |
| Your body vs the clock | An hour ahead | An hour behind |
| What you notice | Sleepy at 9 p.m., awake at 5 a.m., hungry early | Wide awake at bedtime, groggy at the alarm |
| Light after the change | Brighter mornings, dark by late afternoon | Darker mornings, light late into the evening |
| Usually harder for | Early risers, people prone to low mood in winter | Late sleepers, teens, anyone short on sleep already |
| Typical time to settle | 3 to 5 days | 5 to 7 days, sometimes longer |
In the US, the clocks fell back on Sunday, November 1, 2026, and spring forward again on Sunday, March 14, 2027. In the UK and the EU the dates are the last Sunday of March and of October.
Why the "extra hour" in November still throws you off
Falling back sounds like a free hour of sleep, and on the first night it can be. The problem is the days after. At 9 p.m. on the new clock your body thinks it's 10 p.m., so you fade early on the sofa. At 5:30 a.m. it thinks it's 6:30, so you're awake before the alarm and can't drift off again. Meals, the afternoon slump and the evening wind-down all arrive an hour early.
Evenings also turn dark by late afternoon in much of the US. Less daylight in the hours you're awake, and more time indoors under lamps, can leave you flat and sleepy at the wrong hours. A large Danish study found hospital contacts for depression rose by about 11% right after the switch from summer time to standard time, then faded over about ten weeks (Hansen and colleagues, 2017). That doesn't mean the clock change causes depression, but if you're prone to winter low mood, the weeks after November's change are worth watching.
How to fix your sleep after the clocks fall back
1. Set the wake-up time you want, on the new clock
Choose the time you want to get up on workdays and keep it every day this week, Saturday and Sunday too. If your body wakes you an hour early, don't treat it as a lost hour of sleep to "make up" with a lie-in. Treat it as the clock still being an hour fast, and hold the time.
2. Waking too early? Stay in low light
If you wake at 5 a.m. and can't sleep, keep the room dark, don't check your phone, and rest quietly. If you're lying there frustrated for what feels like 20 minutes or more, get up, keep the lights low and do something calm until your normal time. Bright light at 5 a.m. tells the clock "morning starts now" and keeps you waking early. Our guide to waking up too early in the morning covers this in more detail.
3. Take your light late
After falling back, your clock needs to move later. Light in the evening moves it later; light first thing moves it earlier. So:
- Get outdoor light in the late afternoon: a 20 to 30 minute walk before it gets dark is ideal.
- Keep the house reasonably bright until about 2 hours before bed, rather than drifting into dim light at 6 p.m.
- Don't flood yourself with bright light the moment you wake at dawn this week. Normal room light is fine; skip the sunrise walk for now.
4. Don't go to bed the moment you're sleepy
If you're nodding off at 9 p.m., try to stay up to within 30 minutes of your usual bedtime. Going to bed an hour early locks the early schedule in, and you'll wake at 4:30 a.m. Stand up, do something light that keeps you alert (dishes, a call, stretching), and save the sofa for later.
5. Move meals and exercise with the clock
Eat at your usual clock times rather than when your stomach asks, and if you exercise, an early-evening session can help you stay up to your usual bedtime. Keep hard workouts more than 2 hours from bed.
6. Watch the first nap
A dip in the afternoon is common in the first days. If you need a nap, keep it under 30 minutes and before 3 p.m. A long late nap takes away the sleep pressure you need to make it to bedtime.
A 5-day plan after the clocks fall back
This assumes you want to wake at 7 a.m. and sleep around 11 p.m. on the new clock. Shift the times to match your own.
| Day | Morning | Afternoon and evening | Bedtime |
|---|---|---|---|
| Sunday (change day) | Up by 7 a.m. new time, even if you woke at 6 | Outdoor walk 3 to 5 p.m.; lights normal until 9 p.m. | Not before 10:30 p.m. |
| Monday | Up at 7 a.m.; if awake at 6, stay in low light | Walk or time outdoors before dark; no nap after 3 p.m. | 10:30 to 11 p.m. |
| Tuesday | Up at 7 a.m. | Same; dinner at your usual clock time | 11 p.m. |
| Wednesday | Up at 7 a.m.; morning light now fine | Dim lights 1 to 2 hours before bed | 11 p.m. |
| Thursday | Up at 7 a.m. | Back to your normal routine | 11 p.m. |
If you're a strong early bird (asleep by 9:30, up at 5 even before the change), November's change pushes you even earlier. Give the late-afternoon light more weight and hold the plan for 2 weeks rather than 5 days.
How to fix your sleep schedule when the clocks spring forward
The March change is the harder one for most people. You lose an hour, and the clock needs to move earlier, which it does more slowly than later. Studies have linked the days after the spring change with more fatal car crashes in the US (about 6% more in the week after, Fritz and colleagues, 2020) and a rise in heart attacks on the following Monday (Sandhu and colleagues, 2014). Being short on sleep is the likely common thread, which is why the American Academy of Sleep Medicine has called for ending the seasonal change.
Start a few days early
The easiest fix starts before the change. From Wednesday or Thursday, move your wake-up time and bedtime 15 to 20 minutes earlier each day, so by Sunday you're already most of the way there.
Make the morning bright
Spring forward needs the clock to move earlier, so light now goes in the morning. Get outside within an hour of waking for 20 to 30 minutes. A dark March morning is the hard part: open every curtain, sit by the brightest window, and walk outside as soon as it's light.
Make the evening dim
The long light evenings after the change pull the clock later. From 2 hours before bed, use lamps instead of ceiling lights, turn screens down, and keep your phone out of bed. Our guide to screens before bed explains why the phone matters more than the light level.
Don't lie in on Sunday
The lie-in on change day is the most common mistake. It feels earned, but it keeps your body on the old time, and Sunday night becomes the night you can't sleep. Get up at your usual clock time, and use a short early-afternoon nap if you need it.
A 5-day plan for spring forward
| Day | Wake-up (new clock) | Light | Bedtime |
|---|---|---|---|
| Thursday before | 15 minutes earlier than usual | Outdoors within an hour of waking | 15 minutes earlier |
| Friday | 30 minutes earlier | Morning light; dim lights 2 hours before bed | 30 minutes earlier |
| Saturday | 45 minutes earlier | Morning light; no late screens | 45 minutes earlier |
| Sunday (change day) | Your usual time on the new clock | Outdoors early; nap under 30 minutes before 2 p.m. if needed | Usual time, or when sleepy if within 30 minutes |
| Monday onward | Usual time, every day | Morning light every day this week | Usual time |
Didn't get to start early? Begin on Sunday with a fixed wake-up time and morning light, and expect about a week.
What to do the night you can't sleep
Some nights in the first week you'll lie awake. That's the clock, not a sign that something is wrong. Two things keep a few bad nights from turning into a bad month:
- Don't try harder. Effort wakes you up. If you've been awake long enough to feel frustrated, get up, sit in dim light with something boring, and go back when your eyes get heavy. Our guide on what to do when you can't fall asleep walks through it.
- Keep the wake-up time anyway. One short night builds the sleep pressure that makes the next night easier. Sleeping in to recover resets you to the start.
Caffeine, alcohol and melatonin in change week
- Caffeine: fine in the morning, but the afternoon coffee to push through the slump is the one that keeps you awake. Stop by early afternoon; caffeine taken 6 hours before bed still cut sleep by over an hour in one study (Drake and colleagues, 2013).
- Alcohol: it can make you drowsy but breaks up sleep in the second half of the night, which you can least afford this week.
- Melatonin: in spring, some people use a low dose a few hours before their new bedtime to help the clock move earlier. It's a timing signal, not a sleeping pill, and it's of little use after fall back. Check with a doctor or pharmacist first if you take other medicines, are pregnant or have a health condition. Our guide on melatonin covers timing and dose.
Still off a week or two later?
Most people are back to normal within a week. If you're not, the clock change probably uncovered something that was already there:
| What you notice | Likely reason | What to do |
|---|---|---|
| Still can't fall asleep until late, sleep fine once you do | A body clock that runs late anyway | See can't fall asleep before 2 a.m. |
| Lying awake most nights, worrying about sleep | The change kicked off a run of insomnia | Keep a sleep diary and set a sleep window (see the method guides) |
| Bedtime and wake time all over the place | No anchor: weekends, naps, late nights | See how to fix your sleep schedule, step by step |
| Low, flat, sleeping more, craving carbs as days shorten | Possible winter low mood | Morning light helps many people; talk to a doctor if it lasts two weeks or more |
| Loud snoring, gasping, very sleepy by day | A sleep problem that isn't timing | See a doctor; sleep apnea needs testing |
Who takes longer to adjust
- Night owls, in spring especially: the clock already resists moving earlier.
- Early birds, in autumn: November pushes them to 4 or 5 a.m.
- People short on sleep already: a lost hour on top of a short week hits harder.
- Older adults: often wake earlier and may feel the autumn change more.
- Shift workers and parents of young children: fewer chances to keep a steady wake-up time. Hold the anchor on the days you can.
If you're not sure how much sleep you actually need, our guide on how many hours of sleep you need gives a 2-week test to find your number, which tells you what bedtime to aim for after the change.
Mistakes that make the change week worse
- Sleeping in on change Sunday (spring) or the weekend after (autumn).
- Going to bed an hour early in November because you feel sleepy.
- Bright light at 5 a.m. after falling back, or staying in dim light all March morning.
- A long nap late in the afternoon to get through the slump.
- A second coffee at 3 p.m. and a glass of wine at 9 to balance it out.
- Treating one bad night as a sign the week is ruined, and lying in bed longer to make up for it.
A one-hour change is the gentle version. If you need to move 8 hours or more after working nights, use the short-sleep switch in how to fix your sleep schedule after night shift.
Frequently asked questions
How long does it take to adjust to daylight saving time?
Most adults settle within 3 to 7 days. Falling back is usually quicker than springing forward. Night owls in spring and early birds in autumn may take up to 2 weeks.
Should I go to bed earlier after the clocks fall back?
No. Your body wants to, but going to bed an hour early keeps you waking an hour early. Stay up to within about 30 minutes of your usual bedtime and get light in the late afternoon.
Why am I waking up so early since the time change?
Your body clock is still on summer time, an hour ahead of the new clock. Keep the room dark, avoid bright light at dawn, hold your usual wake-up time, and it should settle within a week.
Is it better to adjust gradually or all at once?
For spring forward, gradually: 15 to 20 minutes a day for 3 or 4 days before. For falling back, most people do fine adjusting on the day, as long as they don't go to bed early.
Can I fix my sleep schedule after daylight saving in one night?
Not the body clock itself, which moves gradually. You can make the first night easier by keeping your wake-up time and getting light at the right end of the day, and the rest follows in a few days.
Start tomorrow morning
Set one wake-up time on the new clock and keep it for 7 days, weekends too. This November, get outside in the late afternoon and stay up to your usual bedtime; next March, get outside in the morning and dim the evening. If you were sleeping badly before the clocks changed, take the free sleep quiz: it works out your sleep, your minutes awake in bed and a starting sleep window to fix the bigger problem. For more on timing, falling asleep and the methods behind CBT-I, see all our sleep guides.
Sources: Rishi MA et al., Daylight saving time: an American Academy of Sleep Medicine position statement, Journal of Clinical Sleep Medicine, 2020. Hansen BT et al., Daylight savings time transitions and the incidence rate of unipolar depressive episodes, Epidemiology, 2017. Fritz J et al., A chronobiological evaluation of the acute effects of daylight saving time on traffic accident risk, Current Biology, 2020. Sandhu A et al., Daylight savings time and myocardial infarction, Open Heart, 2014. Drake C et al., Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed, Journal of Clinical Sleep Medicine, 2013. Khalsa SBS et al., A phase response curve to single bright light pulses in human subjects, Journal of Physiology, 2003. US Code, 15 U.S.C. 260a (dates of daylight saving time).