Definition
届时 (jiè shí) is a formal adverb meaning 'at the appointed time' or 'when the time comes' — it refers to a specific future moment already mentioned in context. Unlike 按时 (on time) or 如期 (as scheduled), it does not emphasize punctuality or compliance with a deadline; it simply points to that time. Used only in formal written announcements and speeches.
adverb
at the appointed timewhen the time comes (formal)
Easily confused
- 解释jiě shìsound-aliketo explain
- 结实jiē shisound-alikesturdy, durable (of objects)
- 结识jié shísound-aliketo get to know (someone); to make the acquaintance of
- 揭示jiē shìsound-aliketo reveal, to disclose (a truth, law, fact, etc.)
Examples
- 届时，。jiè shí, qǐng gè wèi dàibiǎo zhǔnshí chūxí.At the appointed time, all representatives are requested to attend punctually.
- ，届时。Běn cì huódòng jiāng yú xià yuè jǔxíng, jiè shí zài tōngzhī jùtǐ ānpái.This event will be held next month; specific arrangements will be announced when the time comes.
- ，届时。Xīn xìtǒng míngnián yī yuè shàngxiàn, jiè shí zhèngshì qǐdòng yùnyíng.The new system will go live in January next year and formally start operations at that time.
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