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.
The law allows states and territories to opt out of daylight saving time, however. Beth Ann Malow, CBS News, 8 Mar. 2025 More people can make use of evening light than morning light For the first weeks of daylight saving time, sleep schedules may be thrown off. Kevinisha Walker, Los Angeles Times, 8 Mar. 2025 The United Kingdom dropped permanent daylight saving time in 1971 after three years, and Portugal in 1996 after four. Joanna Fong-Isariyawongse, The Conversation, 7 Mar. 2025 Every state observes daylight saving time except for two - Hawaii and Arizona, with the exception of the portion of Navajo Nation that's in the state. Chandelis Duster, NPR, 12 Apr. 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 3 May. 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!