Clock changes

Daylight Saving Time Starts: How Much Sleep Do We Lose?

On the night daylight saving time started in 2026, Americans got 11 minutes less sleep, went to bed 9 minutes earlier and got up 24 minutes later than on a typical Saturday night.

In the US and Canada, daylight saving time starts at 2am on the second Sunday of March and the clocks spring forward. We compared the night of the change with the Saturdays around it.

Updated daily · data to Nov 1, 2026 · How we measure

In 127 daysDaylight saving time starts (US & Canada) 2027 falls on Saturday, March 13, 2027. Results will be published a few days later.

Sleep vs normal

−11 min

6h 28m vs 6h 39m

Wake-ups vs normal

+1%

4.3 vs 4.2 per night

Bedtime

10:17pm

−9 min vs usual 10:25pm

Under 6 hours of sleep

36%

+3 pts vs usual 34%

What the data shows

  • Americans slept an average of 6h 28m, compared with 6h 39m on a typical Saturday night.
  • 21% fell asleep after midnight, compared with 23% normally.
  • The next morning, people got up at 8:59am on average, 24 minutes later than usual.
  • 36% of sleepers got less than six hours, against 34% on a normal Saturday.
  • The effect was smaller than in 2025, when the change in sleep was −14 min.
  • Americans were hit hardest, losing 11 minutes of sleep.

Sleep in the nights around Daylight saving time starts (US & Canada) 2026

United States · dashed line is a typical Saturday

  • Sleep
  • Typical Saturday

Source: Sleepiest sleep data · to Nov 1, 2026

Sleep in the nights around Daylight saving time starts (US & Canada) 2026
NightSleepWake-upsBedtime
Feb 28, 20266h 37m4.1910:26pm
Mar 1, 20266h 29m4.1410:12pm
Mar 2, 20266h 26m4.3210:11pm
Mar 3, 20266h 26m4.1910:11pm
Mar 4, 20266h 22m4.0710:11pm
Mar 5, 20266h 27m4.0710:11pm
Mar 6, 20266h 39m4.0710:24pm
Mar 7, 20266h 28m4.2610:17pm
Mar 8, 20266h 27m4.1110:15pm
Mar 9, 20266h 26m4.0810:15pm
Mar 10, 20266h 23m4.1710:17pm
Mar 11, 20266h 29m4.1710:18pm
Mar 12, 20266h 29m4.0710:15pm
Mar 13, 20266h 42m4.0510:23pm
Mar 14, 20266h 39m4.1810:27pm

Wake-ups in the nights around Daylight saving time starts (US & Canada) 2026

United States · average times sleep was broken per night

  • Wake-ups
  • Typical Saturday

Source: Sleepiest sleep data · to Nov 1, 2026

Wake-ups in the nights around Daylight saving time starts (US & Canada) 2026
NightWake-ups
Feb 28, 20264.19
Mar 1, 20264.14
Mar 2, 20264.32
Mar 3, 20264.19
Mar 4, 20264.07
Mar 5, 20264.07
Mar 6, 20264.07
Mar 7, 20264.26
Mar 8, 20264.11
Mar 9, 20264.08
Mar 10, 20264.17
Mar 11, 20264.17
Mar 12, 20264.07
Mar 13, 20264.05
Mar 14, 20264.18

Sleep vs normal on Daylight saving time starts (US & Canada) 2026, by country

Minutes of sleep compared with a typical night

Source: Sleepiest sleep data · to Nov 1, 2026

Sleep vs normal on Daylight saving time starts (US & Canada) 2026, by country
RegionSleepvs normalWake-ups vs normalBedtimeBedtime vs normal
United States6h 28m−11 min+1%10:17pm−9 min
Canada6h 47m+3 min−3%10:33pm−2 min

Daylight saving time starts (US & Canada), year on year

United States · minutes of sleep vs a typical night

Source: Sleepiest sleep data · to Nov 1, 2026

Daylight saving time starts (US & Canada), year on year
YearNightSleep vs normalWake-ups vs normalBedtime vs normal
2025Mar 8, 2025−14 min−4%−2 min
2026Mar 7, 2026−11 min+1%−9 min

Upcoming dates

  • Daylight saving time starts (US & Canada) 2027Saturday, March 13, 2027

Frequently asked questions

When does daylight saving time start?

At 2am on the second Sunday in March in the US and most of Canada. In 2027 that is Sunday March 14.

How much sleep do we lose when the clocks spring forward?

The figures above show the change in total sleep compared with a typical Saturday night.

More sleep data

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Figures are anonymised averages from Sleepiest app users who track their sleep, not a representative sample of the population. Nights are compared with the same weekday in the surrounding weeks. Groups with too few sleepers are never shown. Methodology