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  • DST
    DST
    daylight-saving time.
  • D.S.T.
    D.S.T.
    abbreviation
    daylight-saving time.

DST

1 American  
  1. daylight-saving time.


D.S.T. 2 American  

abbreviation

  1. daylight-saving time.

  2. Doctor of Sacred Theology.


DST British  

abbreviation

  1. Daylight Saving Time

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

DST Scientific  
  1. Abbreviation of daylight-saving time


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:

The prospects are better farther out, with a 44% chance of forever DST by Jan. 1, 2028, and a 54% chance by Jan. 1, 2029.

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

The unfortunate situation arose after Congress extended DST in 2005, adding three weeks in the spring and one week in the fall.

From Slate Oct. 31, 2025

Tencati went into the meeting with DST at the FBI offices prepared.

From Underground by Dreyfus, Suelette

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

In this environment, investors like Yuri Milner, the founder of D.S.T.

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

Forty-five states are now keeping D.S.T.; still out of step are Alaska, Hawaii, Indiana, Kentucky and Michigan.

From Time Magazine Archive

A supply depot will be formed by D.S.T. at "A" Beach as soon as supplies can be landed, and will be in charge of Major Huskisson, A.S.C.

From Gallipoli Diary, Volume 2 by Hamilton, Ian, Sir

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