Comparing "yihou" and "de shihou"

When talking about when something happens, 以后 (yǐhòu) and 的时候 (de shíhou) are often used. They can both be translated as "when," but their meanings are different, so they can't be used in situations you might expect them to be used in. Take a look at this article if you want to figure it out!

Structure

以后 and 的时候 both appear in the same place in the sentence. That is, after the verb.

Subj. + Verb + 以后／的时候，⋯⋯

The difference comes in what they actually mean.

以后

以后 technically means after, so it is used after the action is completed. This can be seen as a way of saying "When you are done (verb)ing."

Examples

• 下 飞机 以后 给 我 打电话 。 Xià fēijī yǐhòu gěi wǒ dǎ diànhuàGive me a call after you get off the plane.
• 来中国以后 我 才 发现 中国菜 那么 好吃 。 Lái zhōngguó yǐhòu wǒ cái fāxiàn zhōngguó cài nàme hào chī. Only when I got to China did I realize how tasty Chinese food is.
• 毕业 以后 我 打算 去 上海 工作 。Bìyè yǐhòu wǒ dǎsuàn qù shànghǎi gōngzuò. I plan to find a job in Shanghai after I graduate.
• 结婚 以后 你 想 继续 工作 吗 ？Jiéhūn yǐhòu nǐ xiǎng jìxù gōngzuò ma?Do you want to keep working after you get married?

的时候

的时候 means "when" in the sense of during an action. For example, "when you play ball" can be seen as "when you are playing ball." It is this sort of difference that can make 以后 and 的时候 slightly confusing at times.

Examples

• 吃饭 的时候 看 电视 容易 长 胖 。 Chīfàn de shíhòu kàn diànshì róngyì zhǎng pàng. Watching TV while you eat can make you fat easily.
• 工作的时候 不要 上网 聊天 。Gōngzuò de shíhòu bùyào shàngwǎng liáotiān. Don't chat online when you're at work.
• 无聊 的时候 可以 做 些 什么 ？Wúliáo de shíhòu kěyǐ zuò xiē shénme? What can you do when you're bored?

的时候 is also similar to using the 一边 structure. However, 一边 uses two conscious actions that you do, whereas "的时候" can use sub-conscious or unexpected actions.

Similar Usage

Now we get to a really confusing part! There are instances where both 以后 and 的时候 could work and still mean the same thing. These are times when there isn't really a duration, it just happens in an instant. For example, "When you see her." This means "As soon as you see her" so there is only one point where you first see a person. In this case, you can use either one.

Examples

• 雨 停 了 的时候，我们 就 去 公园 玩。When it stops raining, we'll go play in the park.
• 雨 停 了 以后，我们 就 去 公园 玩。When it stops raining, we'll go play in the park.
• 商店 关门 的 时候，你 再 来 找 我。Come to find me when the shop is closed.
• 商店 关门 了 以后，你 再 来 找 我。 Come to find me when the shop is closed.

See also

• After a specific time
• At the time when
• Simultaneous tasks with "yibian"
• Comparing "yihou" and "zhihou"

Sources and further reading

Books

• Integrated Chinese: Level 1, Part 2 (3rd ed) (pp. 293-4) Anything Goes (无所不谈) →buy

Videos

• Yoyo Chinese Grammar "When you get home"

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