jau5 haau6 kei4有效期

Jyutpingjau5 haau6 kei4

Yaleyáuh haauh kèih

名詞

Definition

Period of validity; expiration date.

neutraltimeshopping

How it's used

Used primarily in formal or commercial contexts, this term refers to the specific timeframe during which a document, offer, or agreement remains legally or practically binding. While it appears in everyday life on packaging or receipts, it is rarely used in casual conversation to describe personal time or abstract deadlines. It is almost always paired with verbs like 睇 or 留意 when discussing expiration dates.

Measure word

dyun6段dyunh

Examples

le1呢zoeng1張jau1優wai6惠hyun3券ge3嘅jau5有haau6效kei4期zung6仲jau5有gei2幾noi6耐aa4呀？

How much longer is the validity period of this coupon?

nei5你gei3記dak1得tai2睇cing1清co2楚zoeng1張fei1飛ge3嘅jau5有haau6效kei4期aa4呀。

Remember to check the validity period of the ticket clearly.

Common phrases

jau5有haau6效kei4期noi6內

within the validity period

jin4延coeng4長jau5有haau6效kei4期

extend the validity period

Common mistake

Learners often confuse this with 期限, which is a more general term for a deadline or time limit. Use 有效期 specifically when referring to the active status of a contract, voucher, or product safety, rather than a task deadline.