Do We Lose an Hour or Gain an Hour in Spring?

When daylight saving time begins each spring, clocks move forward by one hour, which means that specific night is one hour shorter than usual. In 2026, that happens on March 8, when 2:00 AM becomes 3:00 AM.

This is the transition people tend to find more disruptive, since it directly removes an hour of potential sleep on a work night for most of the country.

When daylight saving time ends each autumn, clocks move back by one hour, extending that night by sixty extra minutes. In 2026, that happens on November 1, when 2:00 AM becomes 1:00 AM.

This is the easier transition for most people, since it effectively hands back the hour that was lost the previous spring.

The mnemonic "spring forward, fall back" captures both directions at once: in spring, clocks — and the hour — move forward; in fall, they fall back.

Losing an hour in spring directly cuts into that night's sleep opportunity, which is why researchers consistently find more short-term disruption — lower alertness, more reported accidents — after the spring change than after the fall one.

Gaining an hour in fall doesn't carry the same cost, but it does bring the year's earliest sunsets: clocks falling back combined with naturally shortening autumn days means many northern US cities see sunset before 5:00 PM within days of the November change.

Because the two transitions are exact mirror images of each other — one hour forward, one hour back, six to eight months apart — a full year always contains exactly 8,760 hours in a non-leap year regardless of daylight saving, even though any single day touching a transition runs 23 or 25 hours instead of 24.