The Right Moment: Using 及时 (jíshí) for Timely Actions
Grammar Rule in 30 Seconds
Use {及时|jíshí} to describe actions taken at the perfect moment, preventing a negative outcome or seizing an opportunity.
- Use before a verb to indicate timely intervention: {他|tā}{及时|jíshí}{赶到|gǎndào} (He arrived just in time).
- Can function as an adjective: {及时|jíshí}{的|de}{帮助|bāngzhù} (Timely help).
- Focuses on the 'window of opportunity' before it is too late.
Overview
In Chinese, expressing that an action occurred at the perfect moment—not just on time, but in time—requires a specific tool: 及时 (jíshí). This adverb and adjective captures the essence of an action whose value is defined by its opportune timing. It signifies that an action was performed at a critical juncture, either preventing a negative outcome or seizing a fleeting opportunity.
Understanding 及时 is about shifting your mindset from the rigid punctuality of a clock (准时, zhǔnshí) to the strategic, situation-based timing of a problem-solver.
The word itself offers a clue to its meaning. 即 (jí) originally meant "to approach" or "at this very moment," while 时 (shí) means "time" or "opportunity." Combined, 及时 conveys the idea of acting precisely when the moment demands it. It’s the difference between arriving at the station at 9:00 AM (准时到达, zhǔnshí dàodà) and arriving with a fire extinguisher just as a fire breaks out (及时灭火, jíshí mièhuǒ).
One is about following a schedule; the other is about averting a crisis. This concept is fundamental in a culture that often values situational awareness and appropriate response.
As a B2 learner, mastering 及时 allows you to express a sophisticated understanding of cause, effect, and necessity. It demonstrates that you not only know what happened but can also comment on why the timing of the event was so crucial. It functions primarily as an adverb modifying a verb, but can also be used as an adjective to describe a noun, making it a versatile and essential component of advanced Chinese.
How This Grammar Works
及时 operates in two primary grammatical roles: as an adverb, which is its most common function, and as an adjective. In both cases, the core meaning of opportune timing is preserved, but the grammatical focus shifts slightly.及时 is placed directly before the verb it modifies. Its function is to describe how the action was performed—specifically, that it was done in a timely, opportune manner. It doesn't just mean the action was fast; it means the action was effective because it was performed at the right moment.问题出现后，我们及时采取了措施。
Wèntí chūxiàn hòu, wǒmen jíshí cǎiqǔle cuòshī.及时 modifies 采取 (to take measures), indicating that the action was not just taken, but taken at the crucial time right after the problem emerged. The implication is that any delay would have worsened the situation.及时 can function as an adjective. In this role, it almost always appears with the particle 的 (de) to form 及时的 (jíshí de) and precedes a noun. It describes the noun itself as being timely or opportune.帮助 (help), 提醒 (reminder), or 信息 (information), as well as more concrete nouns like 雨 (rain).非常感谢你及时的提醒。
Fēicháng gǎnxiè nǐ jíshí de tíxǐng.提醒 (reminder). The reminder itself is being characterized as timely, implying it arrived just when it was needed. The noun phrase 及时的提醒 can then function as an object, as in this example, or even as the subject of another sentence: 及时的提醒避免了一次事故 (Jíshí de tíxǐng bìmiǎnle yīcì shìgù - A timely reminder prevented an accident).及时处理), while using it as an adjective emphasizes the quality of the result (及时的处理).Formation Pattern
及时 correctly, you need to place it properly within the sentence structure. The patterns are consistent and depend on whether you are using it as an adverb or an adjective.
及时 comes after the subject and before the verb. It can also follow modal verbs like 应该 (yīnggāi, should) or 必须 (bìxū, must).
你 | 应该 | 及时 | 更新 | 你的密码。 |
Nǐ | yīnggāi | jíshí | gēngxīn | nǐ de mìmǎ. |
医生 | | 及时 | 赶到 | 了现场。 |
Yīshēng | | jíshí | gǎndào | le xiànchǎng. |
所有问题 | 都 | 及时 | 得到 | 了解决。 |
Suǒyǒu wèntí | dōu | jíshí | dédào | le jiějué. |
及时 is followed by 的 (de) and precedes the noun it describes. This entire phrase, 及时的 + Noun, acts as a single noun unit.
这真是一场 | 及时的 | 雨。 |
Zhè zhēnshi yī chǎng | jíshí de | yǔ. |
他 | 及时的 | 出现 |
Tā | jíshí de | chūxiàn |
拯救了我们。 | (His timely appearance saved us.)
没有 (méiyǒu) for past events or 不 (bù) for general or hypothetical situations.
他 | 没有 | 及时 | 回复邮件， | 所以错过了机会。 |
Tā | méiyǒu | jíshí | huífù yóujiàn, | suǒyǐ cuòguòle jīhuì. |
如果 | 不 | 及时 | 治疗， | 病情会恶化。 |
Rúguǒ | bù | jíshí | zhìliáo, | bìngqíng huì èhuà. |
及时.
When To Use It
及时 in any situation where the positive outcome of an action, or the prevention of a negative one, is directly dependent on its timing. It's not for scheduled appointments but for critical interventions.及时. It applies when prompt action is required to prevent a situation from deteriorating. This context carries a sense of urgency and necessity.发现燃气泄漏后，他及时关闭了总阀门。
Fāxiàn ránqì xièlòu hòu, tā jíshí guānbìle zǒng fámén.幸好消防车及时赶到，否则后果不堪设想。
Xìnghǎo xiāofáng chē jíshí gǎndào, fǒuzé hòuguǒ bùkānshèxiǎng.及时 means you successfully took advantage of the window of opportunity before it closed.看到那家公司在招聘，我及时投了简历。
Kàn dào nà jiā gōngsī zài zhāopìn, wǒ jíshí tóule jiǎnlì.双十一促销时，你必须及时下单才能抢到好东西。
Shuāng shíyī cùxiāo shí, nǐ bìxū jíshí xià dān cáinéng qiǎng dào hǎo dōngxi.如果项目计划有任何变更，请及时通知团队。
Rúguǒ xiàngmù jìhuà yǒu rènhé biàngēng, qǐng jíshí tōngzhī tuánduì.用户反馈的问题需要及时跟进和解决。
Yònghù fǎnkuì de wèntí xūyào jíshí gēnjìn hé jiějué.Common Mistakes
及时 with other time-related adverbs. Understanding the distinctions is crucial for accurate, natural-sounding Chinese.及时 (jíshí), 按时 (ànshí), and 准时 (zhǔnshí)发现问题要及时处理。 (Problems found must be handled in a timely manner.) | 请大家按时提交作业。 (Everyone please submit the homework on schedule.) | 会议将在三点准时开始。 (The meeting will start at 3:00 PM sharp.) |我每天早上及时上班。 (I go to work timely every morning.) | ✗ 幸好你按时提醒我。 (Luckily you reminded me on schedule.) | ✗ 消防车准时灭了火。 (The fire truck extinguished the fire punctually.) |及时 is for emergencies and opportunities. 按时 is for deadlines and routines. 准时 is for appointments and timetables.及时 with 快 (kuài) or 马上 (mǎshàng)及时 emphasizes opportune timing, not just speed. 快 (fast), 马上 (immediately), and 立即 (lìjí, immediately) focus purely on the velocity or immediacy of an action.他很快地跑了过来。(He ran over quickly.) — This describes his speed.他及时地跑过来扶住了快要摔倒的老人。(He ran over in time to support the old man who was about to fall.) — This describes the effect of his action, made possible by his timing.
马上 but still not be 及时. If you immediately apologize a week after the argument, the action is no longer timely. The moment has passed.及时 for events with no sense of urgency or opportunity.及时 is a loaded word; it implies that timing matters. Using it for mundane, neutral actions sounds strange.- ✗
我昨天及时吃了晚饭。(Wǒ zuótiān jíshí chīle wǎnfàn.) - I ate dinner timely yesterday.
我昨天吃了晚饭.Real Conversations
及时 is common in both formal and informal modern communication, from work messages on DingTalk/WeChat to casual texts.
Scenario 1
Context: A manager messaging a developer about a critical software bug.
- 王经理 (Wáng Jīnglǐ): 小李，服务器刚才报警了，查一下是不是有新的 bug。如果发现问题，务必及时处理，很多用户在线上等着呢。
Xiǎo Lǐ, fúwùqì gāngcái bàojǐngle, chá yīxià shì bùshì yǒu xīn de bug. Rúguǒ fāxiàn wèntí, wùbì jíshí chǔlǐ, hěnduō yònghù zàixiàn shàng děngzhe ne.
(Li, the server just sent an alert. Check if there's a new bug. If you find a problem, you must handle it promptly; many users are waiting online.)
- 小李 (Xiǎo Lǐ): 收到，我立刻看。
Shōudào, wǒ lìkè kàn.
(Got it, I'll look right away.)
Analysis
及时 to stress that the action of 'handling the problem' must be done at the most opportune time—which is right now—to prevent further negative impact on users. 按时处理 (handle on schedule) would make no sense here.Scenario 2
Context: Someone posts about grabbing the last item during a flash sale.
- Post: 总算抢到了！幸好朋友及时把链接发我，不然这次肯定又错过了。
Zǒngsuàn qiǎng dàole! Xìnghǎo péngyǒu jíshí bǎ liànjiē fā wǒ, bùrán zhè cì kěndìng yòu cuòguòle.
(Finally got it! Luckily my friend sent me the link just in time, otherwise I definitely would have missed it again.)
Analysis
及时 to highlight that the friend's action of sending the link was perfectly timed to the fleeting opportunity of the sale. It wasn't just a fast action, it was an effective one.Scenario 3
Context: Person A is about to leave home when they get a weather reminder from Person B.
- Person B: 天气预报说下午有雷阵雨，出门别忘了带伞。
Tiānqì yùbào shuō xiàwǔ yǒu léizhènyǔ, chūmén bié wàngle dài sǎn.
(The forecast says there's a thunderstorm this afternoon. Don't forget an umbrella when you go out.)
- Person A: 感谢及时提醒！我正要出门，完全忘了这事。
Gǎnxiè jíshí tíxǐng! Wǒ zhèng yào chūmén, wánquán wàngle zhè shì.
(Thanks for the timely reminder! I was just about to leave and had completely forgotten.)
Analysis
及时 because it arrived at the most opportune moment—right before they left home. Had it come five minutes later, it would have been too late.Quick FAQ
及时?The direct grammatical negative is 不及时 (bù jíshí) or 没有及时 (méiyǒu jíshí). However, the conceptual opposite is often expressed with the idiom 为时已晚 (wéi shí yǐ wǎn), which means "by the time it happened, it was already too late." For example, 他送到医院时已经为时已晚 (By the time he was sent to the hospital, it was already too late).
及时 and 立即 (lìjí) / 马上 (mǎshàng)?立即 and 马上 both mean "immediately" and emphasize the speed and lack of delay. 及时 emphasizes the appropriateness and effectiveness of the timing. An action can be immediate (马上) but not timely (及时) if the opportune moment has already passed. For instance, if you realize you made a mistake in a presentation and 马上 correct it a day later, your action is immediate (at that moment) but no longer 及时.
及时 considered formal or informal?It's a highly versatile word used across all levels of formality. You will see it in official government notices (请及时更新您的证件 - Please update your documents promptly) and hear it in casual conversations (你最好及时跟他解释一下 - You'd better explain it to him in a timely manner).
及时 be used to urge or command someone?Yes, it's very common in polite or formal requests to create a sense of reasoned urgency. 请您及时付款 (Qǐng nín jíshí fùkuǎn - Please make the payment promptly) sounds more professional and less demanding than 请您马上付款 (Please pay immediately).
及时 ever be a noun?No, 及时 itself cannot function as a noun. It is always an adverb or an adjective. You might see the noun 及时性 (jíshí xìng), which means "timeliness" (e.g., 保证信息的及时性 - ensure the timeliness of the information), but this is a separate, more technical term.
Formation of 及时
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subj + 及时 + Verb
|
他及时赶到
|
|
Negative
|
Subj + 没 + 及时 + Verb
|
我没及时通知
|
|
Question
|
Subj + 是否 + 及时 + Verb
|
你是否及时回复
|
|
Adjective
|
及时 + 的 + Noun
|
及时的帮助
|
|
Past
|
Subj + 及时 + Verb + 了
|
他及时完成了
|
|
Future
|
Subj + 要 + 及时 + Verb
|
你要及时学习
|
Meanings
Indicates that an action occurs at the right moment, often implying that if it were any later, the result would be negative.
Timely Action
Doing something before it is too late.
“{我们|wǒmen}{及时|jíshí}{发现|fāxiàn}{了|le}{问题|wèntí}。”
“{请|qǐng}{及时|jíshí}{回复|huífù}{邮件|yóujiàn}。”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subj + 及时 + Verb
|
他及时赶到
|
|
Negative
|
Subj + 没 + 及时 + Verb
|
我没及时通知
|
|
Question
|
Subj + 能否 + 及时 + Verb
|
你能否及时赶到
|
|
Adjectival
|
及时 + 的 + Noun
|
及时的建议
|
|
Emphasis
|
非常 + 及时
|
非常及时
|
|
Conditional
|
如果 + 及时 + Verb
|
如果及时处理
|
Formality Spectrum
请及时回复。 (Email/Text)
请及时回复。 (Email/Text)
快点回我。 (Email/Text)
速回！ (Email/Text)
The 及时 Concept
Usage
- 及时赶到 Arrive in time
- 及时回复 Reply in time
Examples by Level
{我|wǒ}{及时|jíshí}{吃饭|chīfàn}。
I ate just in time.
{你|nǐ}{及时|jíshí}{回来|huílái}{了|le}。
You came back just in time.
{请|qǐng}{及时|jíshí}{处理|chǔlǐ}{这|zhè}{个|gè}{问题|wèntí}。
Please handle this problem in a timely manner.
{幸亏|xìngkuī}{你|nǐ}{及时|jíshí}{提醒|tíxǐng}{我|wǒ}，{否则|fǒuzé}{就|jiù}{麻烦|máfan}{了|le}。
Luckily you reminded me in time, otherwise it would be trouble.
{政府|zhèngfǔ}{采取|cǎiqǔ}{了|le}{及时|jíshí}{的|de}{措施|cuòshī}。
The government took timely measures.
{他|tā}{的|de}{出现|chūxiàn}{非常|fēicháng}{及时|jíshí}。
His appearance was extremely timely.
Easily Confused
Both relate to time.
Common Mistakes
赶到及时
及时赶到
我及时了会议
我准时参加了会议
及时地赶到
及时赶到
他及时了
他来得很及时
Sentence Patterns
Subject + 及时 + ___ + 了
Real World Usage
请及时处理。
Check the Verb
Smart Tips
Use 及时 to sound professional.
Pronunciation
Tones
Jí (2nd) Shí (2nd). Both are rising tones.
Urgency
及时！
Emphasis on the timing.
Memorize It
Mnemonic
Think of 'Jí' (urgent) + 'Shí' (time). Urgent time = Just in time.
Visual Association
Imagine a clock ticking down to zero, and someone jumping in to stop it at the very last second.
Rhyme
Jíshí is the word to say, when you save the day.
Story
Xiao Wang was late for the train. He ran fast. He arrived at the gate just as it closed. He was 'jíshí'.
Word Web
Challenge
Write three sentences about things you did 'just in time' today.
Cultural Notes
In Chinese business culture, 'timely' is highly valued as a sign of respect.
Classical Chinese roots for 'timely' and 'time'.
Conversation Starters
你今天及时完成工作了吗？
Journal Prompts
Common Mistakes
Test Yourself
他___赶到了。
Score: /1
Practice Exercises
1 exercises他___赶到了。
Score: /1
Practice Bank
12 exercises幸好消防车______赶到，控制了火势。
请大家______明天下午三点在会议室开会。
Choose the best sentence to express 'Thank you for your timely help'.
为了身体健康，你应该及时吃饭和睡觉。
回复 / 了 / 我 / 他的 / 及时 / 邮件
If you discover a mistake, you must correct it promptly.
Match the scenarios.
为了保证项目进度，请大家______完成自己的任务。
一场______的雨。
这个App的提醒功能很及时，总是在约会前半小时提醒我。
帮助 / 感谢 / 的 / 及时 / 你
The meeting will start punctually at 2 PM.
Score: /12
FAQ (1)
No, it is an adverb or adjective.
Scaffolded Practice
1
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
a tiempo
Spanish uses a prepositional phrase; Chinese uses an adverb.
à temps
French uses a prepositional phrase.
rechtzeitig
German word order is more flexible.
間に合う (maniau)
Japanese uses a verb phrase.
في الوقت المناسب
Arabic is a phrase, not a single adverb.
及时
N/A
Learning Path
Prerequisites
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