time flies
Meaning
Time seems to pass very quickly, especially when you are busy or enjoying yourself.
Origin
A long-standing metaphor comparing the swift passage of time to flight; popularized by the Latin phrase “tempus fugit” (“time flees”), known from classical literature (e.g., Virgil).
Notes
A common, neutral-to-reflective remark implying time feels surprisingly fast, often because you’re busy or enjoying something. Suitable for everyday speech and writing; often appears as “time flies when…”.
Examples
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Time flies when you’re having fun.
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I can’t believe it’s already Friday—time flies.
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The kids are growing up so fast; time really flies.
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We talked for hours, but time flew by.
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Once you start the project, time flies and the deadline arrives quickly.
Grammar & Usage Notes
Usually fixed as “Time flies.” Often expanded: “Time flies when you’re having fun.” The verb can change for tense in narration (“Time flew”), but the core phrasing stays the same.
Synonyms
- time goes by fast
- the time flew by
- time passes quickly
Antonyms
- time drags
- time crawls