daylight saving

American  

Or daylight savings

noun

1. the practice of advancing standard time by one hour in the spring of each year and of setting it back by one hour in the fall in order to gain an extra period of daylight during the early evening.

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Etymology

Origin of daylight saving

First recorded in 1905–10

Example Sentences

Meanwhile, the United States Senate, in 2022, unanimously passed a bill to make daylight saving time permanent.

From Slate • Jun. 6, 2026

Generally speaking, the twice-a-year daylight saving time clock changes are unpopular.

From Los Angeles Times • Mar. 7, 2026

Every fall, Americans are plunged into darkness an hour earlier when the clocks turn back at the end of daylight saving time.

From Slate • Oct. 31, 2025

When do the clocks change in the UK and why do we follow daylight saving time?

From BBC • Oct. 24, 2025

There was once a state legislator in Wisconsin who objected to the introduction of daylight saving time despite all the good arguments for it.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos