Science of baby sleep
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10 Tips to help your baby adapt to daylight saving time changes

Cradlewise Staff
(Daylight Saving Time Starts Sunday, March 8, 2026)
Are you ready for more daylight? And, is your baby?
Daylight Saving Time is coming up, and yes, it’s okay to sigh a little. On March 8, 2026, the clocks jump ahead by an hour, and while that might not sound like much, it can throw your baby’s internal clock off just enough to feel like a bit of jet lag. The reassuring part? With a little prep and a few gentle shifts to your routine, most babies settle in quickly, no major sleep shake-ups required
Why this matters
When the clocks move ahead by an hour, our circadian rhythms, the body’s internal sleep clock, have to catch up. Adults often feel a little groggy for a few days, and babies can feel it too, especially if they’re used to a consistent schedule. The shift can feel similar to mild jet lag, temporarily affecting sleep timing, mood, and daily routines.
When your baby’s internal sleep–wake cycle doesn’t line up with the natural light–dark cycle, it can make sleep more restless and lead to daytime tiredness or fussiness. This happens because the body’s circadian rhythm, the biological system that helps regulate sleep, gets disrupted when the timing of sleep and light cues don’t match.
National Institute of General Medical Sciences (NIH) research explains that when circadian rhythms fall out of sync with environmental light, people can experience drowsiness and difficulty sleeping.
That’s exactly why the CDC recommends keeping sleep routines as consistent as possible, including regular wake-up times, bedtimes, and calming sleep environments, to help support healthy sleep patterns for both kids and adults, especially during changes like Daylight Saving Time.
Research highlighted by the American Psychological Association (APA) shows that losing just one hour of sleep, as happens with DST, can reduce total sleep time and disrupt sleep patterns.
Did you know?
Daylight Saving Time was first adopted nationwide on April 30, 1916, when Germany moved the clocks forward, making it the first country to implement DST at a national level. However, the idea was tested even earlier; in 1908, the town of Thunder Bay in Ontario, Canada, had already begun observing daylight saving time locally.
10 Tips to help your baby adjust smoothly
Daylight Saving Time can feel big for tiny sleep schedules. These tips focus on small, science-backed shifts that protect sleep while keeping routines calm, familiar, and flexible for your baby (and you).
1. Start gradual shifts a few days before
Move your baby’s schedule 15 minutes earlier each day, starting 3–4 days before March 9. This includes wake-up time, naps, meals, and bedtime. Small shifts are easier on your baby (and you).
Here’s what that can look like:
| Thursday (March 6): Wake your baby 15 minutes earlier than usual. Open the curtains and let in plenty of light. Offer naps, meals, and bedtime 15 minutes earlier, too. | ||
| Friday (March 7): Shift everything another 15 minutes earlier. | ||
| Saturday (March 8): Repeat the shift once more. |
By the time Sunday arrives and the clocks jump forward, your baby’s internal clock is already closer to the new time, which can make the transition feel much smoother.
2. Use light to reinforce the new schedule
Natural light is one of the strongest cues for resetting body clocks. Morning sunlight helps signal “wake-up time,” while dimming lights before bedtime helps cue sleepiness.
3. Be consistent with routines
Keep your usual bedtime routine, bath, book, and cuddle happening at roughly the same points relative to your baby’s day, even if the clock has changed. Familiar rituals cue the brain for sleep.
4. Keep the room dark at bedtime
Use blackout curtains or shades to block extra evening light; that extra daylight can signal alertness when your baby should be winding down.
5. Don’t panic after the first night
It’s common for babies to wake up a bit earlier or have a few extra night wakings the first 2–3 nights after the time change. Stay calm and stick with your routines.
6. Adjust wake windows, not just clock time
Rather than obsessing over the clock, pay attention to how long your baby is awake between sleeps. Keeping appropriate wake windows helps regulate sleep pressure and timing.
7. Let them nap (but strategically)
Short, quality naps can help your baby catch up on sleep without ruining nighttime sleep. Avoid letting naps run too long or too late in the day.
8. Embrace flexibility for younger babies
Newborns don’t have a strong circadian rhythm yet, so they may not show much effect from DST. If your baby is under 6 months, go by sleep cues rather than rigid schedules.
9. Offer extra patience (for you and baby!)
This adjustment can take up to a week or more to fully settle. Be flexible and kind to yourself and your baby’s sleep rhythm.
10. Celebrate the extra sunshine after it clicks
Once your family adjusts, the longer evenings mean more daylight for playtime, fresh air, and outdoor fun, which can boost mood and activity.
The not-so-perfect parts (because they happen)
Even with preparation, some babies may:
- Wake a little earlier than usual
- Have shorter naps for a few days
- Need extra comfort at night
This is normal. Most babies take a few days to up to a week to fully adjust. Keeping the room dark until morning and dimming lights before bedtime can help reinforce the new rhythm.
What if your baby already wakes very early?
If your baby is well-rested but starts the day at 5:00 am, the spring time change may actually help shift their schedule later, without much extra effort. In these cases, you may choose to make fewer adjustments and let the clock change do some of the work.
A note for younger babies
Babies under 6 months don’t have a fully mature sleep rhythm yet, so they may barely notice the time change at all. If your baby is younger, following sleep cues and making slower adjustments often works best.
Daylight Saving Time can feel disruptive because your baby’s internal clock doesn’t change overnight. Gentle schedule shifts, consistent routines, and light exposure at the right times can help ease the transition.
And if things feel a little off for a few days? That’s okay. With patience and consistency, sleep usually settles back into place.
Conclusion
Daylight Saving Time can feel disruptive because your baby’s internal clock doesn’t change overnight. Gentle schedule shifts, consistent routines, and light exposure at the right times can help ease the transition.
And if things feel a little off for a few days? That’s okay. With patience and consistency, sleep usually settles back into place.
FAQs
Q: Does daylight saving time affect babies?
A: Yes, especially babies with established sleep routines. The one-hour shift can temporarily affect sleep timing and mood.
Q: How early should I start adjusting my baby’s schedule for daylight saving time?
A: Starting 3–4 days before the time change with 15-minute shifts works well for many families.
Q: What if I don’t adjust my baby’s schedule at all?
A: Many babies will still adjust on their own, but it may take a few extra days and involve early wake-ups or short naps.
Q: Are younger babies affected by daylight saving time?
A: Babies under 6 months often have more flexible sleep rhythms and may not notice the change as much.
Q: Can daylight saving time help with early morning wake-ups?
A: In some cases, yes, the time change can naturally shift early risers to a later wake-up once they adjust.
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Sources:
- Sleep impacts of daylight saving time change. NIOSH Science Blog (CDC). 2022. “Here Comes the Sun! Tips to Adapt to Daylight Saving Time”
- Overview of circadian rhythms. National Institute of General Medical Sciences (NIH). (Updated 2025). “Circadian Rhythms”
- General information on sleep and health. Centers for Disease Control and Prevention (CDC). 2024. “About Sleep”
- Effects of daylight saving on sleep and workplace injuries. Journal of Applied Psychology. 2009. “Changing to daylight saving time cuts into sleep and increases workplace injuries”
- Development of the circadian system in early life. Journal of Physiological Anthropology. 2022. “Development of the circadian system in early life: maternal and environmental factors”


