Where did your extra hour go?
In most of the US, clocks go back on November 1, 2026, immediately after Halloween night. A later bedtime can spend that extra hour before you get to enjoy it.
Choose your US location and year, then enter your usual bedtime, your planned bedtime for fall-back night and your wake-up time. The result compares the time available in bed with a normal night at the same wake-up clock time. It measures an interval, not how much you actually sleep.
Entering your times
Use a 24-hour clock: 23:00 is 11 PM, 00:30 is half past midnight and 07:00 is 7 AM. Bedtimes from noon to 23:59 belong to the evening before the change; earlier bedtimes belong to the change morning. Wake-up must be on that morning, from 00:00 to 11:59. The form shows the exact dates for the selected year.
At the fall-back transition, 01:00–01:59 happens twice. If your planned bedtime or wake-up is in that hour, choose the first occurrence (before the clock moves back) or the second occurrence (afterward). The initially selected first occurrence is visible; select the second if that is what you mean.
For example, first 01:45 to second 01:15 is a real 30-minute interval, even though the wake-up clock time looks earlier. A normal night has only one occurrence of the hour, so the usual-bedtime comparison needs no such choice.
Example: Halloween spends the bonus
In New York in 2026, suppose you usually go to bed at 23:00 and wake at 07:00: eight hours on a normal night. Going to bed at 00:30 on November 1 leaves six and a half wall-clock hours until 07:00, plus the repeated hour: 7 hours 30 minutes available in bed.
You stayed up 90 minutes later and gained 60 minutes from the clock change. You end up with 30 minutes less than on a normal night.
If you go to bed at 02:00, after the change, there is no extra hour left in your interval. From 02:00 to 07:00 you have five hours.
Method and places without a clock change
Under the current US rule described by NIST, daylight saving time ends at 02:00 on the first Sunday in November in observing locations. The clock returns to 01:00. We add the repeated 60 minutes only when your interval crosses it, respecting the selected first or second occurrence.
Normal-night minutes = wake-up time − usual bedtime, across midnight where needed. Available minutes = actual elapsed time from planned bedtime to wake-up. Difference = available minutes − normal-night minutes. All calculations use whole minutes.
Phoenix and Honolulu use no clock change. Shiprock represents the Navajo Nation, which observes daylight saving time; do not choose Phoenix for that location. Other listed cities represent the named US time zones. Choose one whose clock rules match your location. This tool does not infer your location from your device or support every US territory or international clock rule.
Scope and future years
Years 2026–2035 use the current first-Sunday-in-November rule. Future dates are projections under that rule, not a guarantee that legislation will stay the same. This is a single-night calculation in one location, with wake-up before noon. It does not model spring-forward nights, travel between zones, time to fall asleep, awakenings, sleep quality or medical sleep needs.
For a clock-only interval on any ordinary day, use the Time Duration Calculator.