An Hour Behind May 2026

: Not everyone participates. Regions like Hawaii , most of Arizona , and several U.S. territories stay on Standard Time year-round.

: Studies have noted shifts in cardiovascular health during these transitions. For instance, some research suggests a 21% decrease in heart attack risk on the Monday following the "fall back," contrasting sharply with a 25% increase when we "spring forward". An Hour Behind

In most of the United States, clocks are set back one hour at 2:00 a.m. on the . : Not everyone participates

: A simple way to remember the direction is "Spring Forward, Fall Back". The Impact: Is It Actually an "Extra Hour"? : Studies have noted shifts in cardiovascular health

: The shift "returns" the hour borrowed in the spring, granting more natural light during winter mornings at the expense of earlier sunsets.