DST
daylight-saving time.
DST
1 American
D.S.T.
2
American
abbreviation
-
daylight-saving time.
-
Doctor of Sacred Theology.
DST
British
abbreviation
DST
Scientific
Usage
What does DST stand for? DST is an abbreviation for daylight-saving time, the period during which the time is adjusted in order to gain an extra hour of daylight in the evening during part of the year. Daylight-saving time begins in the spring, when clocks are set one hour ahead. They are then set one hour back in the fall. Daylight-saving time is also commonly called daylight-savings time. The term daylight saving (or daylight savings) refers to the practice of adjusting the time in this way. Both of these terms can be used as short forms of daylight-saving time. All of these terms can also refer to the specific mode of time that’s being used during a particular period, as opposed to standard time. People often use the simple mnemonic spring forward, fall back to remember to set clocks forward one hour (e.g., from 2 a.m. to 3 a.m.) in the spring and backward one hour (e.g., from 2 a.m. to 1 a.m.) in the fall. This is often seen as resulting in one less hour of sleep time on the day that the clocks are adjusted in the spring and one more hour when they’re changed in the fall. Daylight-saving time is widespread, but it is not observed everywhere or in the same way in all locations. In the U. S., for example, daylight-saving time is not observed by the states of Arizona or Hawaii. Example: Don’t forget to set your clocks ahead for DST.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
As everyone waits to see how the bill fares in the Senate, below is a rundown of how a range of industries view proposals to “lock the clock” and “ditch the switch” by entrenching DST.
From MarketWatch ● Jul. 15, 2026
“So, when the team’s deployed, the DST is deployed, we’re all working together.”
From Los Angeles Times ● Jul. 7, 2026
Existing investors such as Thrive Capital and DST Global also participated in this funding round, the company’s third this year.
From The Wall Street Journal ● Nov. 13, 2025
Every presidential election since 2005’s DST expansion has arrived two days after the time change.
From Slate ● Oct. 31, 2025
Some time after the first attack, DST sent word that certain agents were going to be in Washington DC regarding other matters.
From Underground by Suelette Dreyfus
In many of the D.S.T. deals, founders and early investors have had the option to convert some of their stakes in the company to cash.
From New York Times ● Apr. 7, 2011
He said he was able to sell some of his shares in D.S.T.
From New York Times ● Apr. 7, 2011
In this environment, investors like Yuri Milner, the founder of D.S.T.
From New York Times ● Apr. 7, 2011
In another 18 states, individual communities decide for themselves whether or not they will follow D.S.T. and set for themselves the dates on which it goes into and out of effect.
From Time Magazine Archive
This transport will be handed over, as it is landed, by an officer appointed by the D.S.T., to transport officers of Brigades and divisional troops for allotment as circumstances may require.
From Gallipoli Diary, Volume 2 by Sir Ian Hamilton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
