Definition

1. Noun:
   • A system of adjusting official clock time: "daylight saving" refers to the practice of advancing clocks during warmer months so that evening daylight lasts longer, while sacrificing natural morning light. The common full term is "daylight saving time" (DST).

Usage

• As a subject: "Daylight saving begins in the spring."
• With prepositions: "We lose an hour of sleep at the start of daylight saving." / "Are we currently on daylight saving?"
• Note: The term is most frequently used in the full phrase "daylight saving time." When used alone, "daylight saving" is understood to mean this system.

Examples

• Noun:
  • I always forget whether daylight saving means we set the clocks forward or back.
  • The main argument for daylight saving is the reduction of evening energy use.
  • Many people dislike the disruption caused by the switch to and from daylight saving.

Advanced Usage

• "daylight saving time" (DST): The full, formal name for the system.
  • Daylight Saving Time ends on the first Sunday in November.
• "to observe daylight saving": To follow or use this system.
  • Not all states in the country observe daylight saving.

Variants and Related Words

• Daylight Saving Time (DST): The complete compound term.
• Summer time: A term used synonymously in some regions, notably the UK.
• Standard time: The time observed during the non-daylight saving period.

Synonyms

• Summer time (chiefly British English).
• Daylight time (informal).

Related Phrases

• "Spring forward, fall back": A common mnemonic for remembering which way to adjust clocks at the beginning and end of the daylight saving period.
• "To set the clocks ahead/forward": The action taken at the start of daylight saving.
• "To set the clocks back": The action taken when returning to standard time.

Noun

1. time during which clocks are set one hour ahead of local standard time; widely adopted during summer to provide extra daylight in the evenings