Phrase guide

daylight saving time

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The practice in some places of adjusting clocks forward in the spring and back in the fall, usually by one hour, so that the adjustment causes the time to coincide with the greatest period of illumination by the sun over the course of the day.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • 2005: answers.firstgov.gov -- Daylight Saving Time is a change in the standard time of each time zone. ... The American law by which we turn our clock forward in the spring and back in the fall is known as the Uniform Time Act of 1966. The law does not require that anyone observe Daylight Saving Time; all the law requires is that if we are going to observe Daylight Saving Time, it must be done uniformly. http://answers.firstgov.gov/cgi-bin/gsa_ict.cfg/php/enduser/std_adp.php?p_faqid=6880

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Alternative letter-case form of daylight saving time.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

37 source translations are retained for this English entry.

  • Bulgarian: ля́тно вре́ме (ljátno vréme) — an adjustment of the official time during summer
  • Catalan: horari d'estiu — an adjustment of the official time during summer
  • Chinese Mandarin: 夏時制 /夏时制 (xiàshízhì) — an adjustment of the official time during summer
  • Chinese Mandarin: 夏令時 /夏令时 (xiàlìngshí) — an adjustment of the official time during summer
  • Czech: letní čas — an adjustment of the official time during summer
  • Danish: sommertid — an adjustment of the official time during summer
  • Dutch: zomertijd — an adjustment of the official time during summer
  • Finnish: kesäaika — an adjustment of the official time during summer
  • French: heure d’été — an adjustment of the official time during summer
  • French: heure avancée — an adjustment of the official time during summer
  • Galician: horario de verán — an adjustment of the official time during summer
  • German: Sommerzeit — an adjustment of the official time during summer
  • Greek: θερινή ώρα (theriní óra) — an adjustment of the official time during summer
  • Hebrew: שְׁעוֹן קַיִץ (sh'on qáyitz) — an adjustment of the official time during summer
  • Hungarian: nyári időszámítás — an adjustment of the official time during summer
  • Indonesian: waktu musim panas — an adjustment of the official time during summer
  • Irish: am sanhraidh — an adjustment of the official time during summer
  • Italian: ora legale — an adjustment of the official time during summer
  • Japanese: 夏時間 (natsujikan) — an adjustment of the official time during summer
  • Japanese: サマータイム (samātaimu) — an adjustment of the official time during summer
  • Korean: 일광 절약 시간 (ilgwang jeoryak sigan) — an adjustment of the official time during summer
  • Latin: hora aestiva — an adjustment of the official time during summer
  • Navajo: náʼoolkiłí tʼááłáʼí ahééʼílkid bee náás ninádajiiłkeed — an adjustment of the official time during summer
  • Navajo: náás náádaʼdeeskidgo — an adjustment of the official time during summer
  • Norwegian Bokmål: sommertid — an adjustment of the official time during summer
  • Polish: czas letni — an adjustment of the official time during summer
  • Portuguese: horário de verão — an adjustment of the official time during summer
  • Romanian: ora de vară — an adjustment of the official time during summer
  • Russian: ле́тнее вре́мя (létneje vrémja) — an adjustment of the official time during summer
  • Spanish: horario de verano — an adjustment of the official time during summer
  • Spanish: horario veranero — an adjustment of the official time during summer
  • Spanish: horario veraniego — an adjustment of the official time during summer
  • Spanish: hora ahorrativa lumínica diurna — an adjustment of the official time during summer
  • Spanish: hora de ahorro de luz diurna — an adjustment of the official time during summer
  • Swedish: sommartid — an adjustment of the official time during summer
  • Thai: เวลาออมแสง — an adjustment of the official time during summer
  • Welsh: amser haf — an adjustment of the official time during summer