daylight saving time

noun

: time usually one hour ahead of standard time

called also daylight saving, daylight savings, daylight savings time, daylight time

Examples of daylight saving time in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Here’s what to know about changing the clock: When is daylight saving time? Time change: Daylight saving time starts at 2 a.m. Sunday, March 9, 2025. Miami Herald Archives, Miami Herald, 28 Feb. 2025 The Insurance Institute for Highway Safety (IIHF), which is funded by insurance companies, has long advocated for year-round daylight saving time. David K. Li, NBC News, 22 Dec. 2024 During World War II, President Franklin D. Roosevelt signed a law establishing year-round daylight saving time. Mary Boyte, The Tennessean, 2 Nov. 2024 Trump has yet to pass any executive legislation to permanently end daylight saving time as of Wednesday. Anthony Robledo, USA TODAY, 14 Feb. 2025 See All Example Sentences for daylight saving time

Word History

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of daylight saving time was in 1908

Browse Nearby Words

Cite this Entry

“Daylight saving time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/daylight%20saving%20time. Accessed 6 Mar. 2025.

Kids Definition

daylight saving time

noun
: time usually one hour ahead of standard time

More from Merriam-Webster on daylight saving time

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!