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夜以繼日

简夜以继日 · 繁夜以繼日

Mandarin · pinyin yè yǐ jì rì

night and day (idiom); continuous strenuous effort

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Characters in this entry

夜: yè · night, dark; in night; by night
以: yǐ · by means of; thereby, therefore; consider as; in order to
繼: Look up this written character
日: rì · sun; day; daytime
继: jì · continue, maintain, carry on

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

4–3–4–4 · ye4 yi3 ji4 ri4

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

夜以繼日 · find source passages ↗ · 夜以继日 · find source passages ↗

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

je6 ji5 gai3 jat6

Cantonese word readings for 夜以繼日. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

phrase

(idiomatic) day and night; round the clock

Source page · dump 2026-09-02 · Contributors & history

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