Clocks go forward by one hour in the spring to start daylight saving time and go back by one hour in the fall (autumn) to end it. This is commonly remembered as "Spring forward, fall back." Moving clocks forward in spring means losing one hour of sleep but gaining more daylight in the evening, while moving clocks back in fall means gaining one hour of sleep but having earlier nightfall.
For example:
- In spring, at 2:00 a.m., clocks are set forward to 3:00 a.m.
- In fall, at 2:00 a.m., clocks are set back to 1:00 a.m.
This practice is observed in many countries including the United States, Canada, and parts of Australia and Europe.
