Grammar Rule in 30 Seconds
Use 'o'clock' only for exact hours with no minutes. Start your sentence with 'It's' to sound natural.
- Use 'o'clock' only for whole hours like 1:00 or 5:00. Example: 'It's 4 o'clock.'
- Never use 'o'clock' if there are minutes. Example: Say 'It's 4:30', not 'It's 4:30 o'clock.'
- Use 'It is' or 'It's' as the subject and verb. Example: 'It's 9 o'clock.'
Overview
o'clock！o'clock。这个小词是你让约会和计划变得一清二楚的秘密武器。这是你在英语中学到的第一个也是最重要的报时工具之一。它告诉每个人你的意思是*正好*在整点，一分钟都不差。把它想象成小时的贵宾区——只有确切的小时才能使用o'clock这个词。这是一个简单的技巧，能让你听起来更自然，并帮助你避免混淆。你是否曾经因为没有指明a.m.或p.m.而等了一个迟到一小时的朋友？正确使用时间词有助于防止那种混乱。这个语法规则是你成为英语时间大师的第一步。How This Grammar Works
o'clock的魔力在于它的简单性。它是一个老式的词，字面意思是“of the clock”（时钟的）。所以当你说“four o'clock”时，你实际上是在说“时钟的四点”。听起来有点像海盗，但这是完全正常的！你只能将它与数字1到12一起使用。你不能说13 o'clock或20 o'clock。那是军用时间，o'clock不与军用时间为伍。它严格用于我们日常对话中使用的12小时制。要记住的最重要的规则是o'clock意味着零分钟。时钟上的长指针（分针）必须直接指向12。如果哪怕过了一分钟，比如4:01，o'clock的派对就结束了。你不能用它。这就是为什么它如此精确。当你听到o'clock时，你就知道时间是准确的。没有猜测，没有疑惑。这是陈述小时最清晰的方式。这就像在小时本身下面画一条粗粗的下划线。你通常会在It is...或It's...这个短语后面听到它。例如，“What time is it?” “It's 5 o'clock.” 简单直接。
Formation Pattern
It's或It is开头。 这为接下来的内容做好了铺垫。你将要宣布时间。It's只是It is的友好缩写形式。大多数人在非正式谈话中说It's。
nine。
o'clock结尾。 这是表示“就是这个整点”的魔法词。
It's + [1-12的数字] + o'clock
o'clock是个完美主义者。只允许完美的小时。
When To Use It
o'clock。它非常适合安排日程和谈论日常生活。- 制定计划： “The movie starts at 8 o'clock.”
- 约会： “My Zoom interview is at 2 o'clock sharp.”
- 查看时间： “Wow, it's already 5 o'clock! Time to go home.”
- 日常生活： “I wake up at 6 o'clock every morning.”
4:00变得越来越普遍。但是当你说的时候，four o'clock听起来比说“four zero zero”要自然得多。你不会想让你的优步司机在‘three-zero-zero’到达吧？说three o'clock就是更顺口。如果上下文不清楚，加上in the morning或in the evening这样的语境也很常见。例如，“Let's meet at 7 o'clock.” “In the morning?!” “No, 7 o'clock in the evening, for dinner!”
Common Mistakes
- 1将
o'clock与分钟一起使用。 这是头号错误。永远，永远不要说这样的话：✗ It's six-thirty o'clock.这在英语中根本不存在。一旦涉及到分钟，o'clock就退出了对话。你只会说It's six-thirty。
- 1忘记
It's。 当有人问“What time is it?”时，不要只回答Nine o'clock.。这听起来有点机器人化。自然的回答包括It's：✓ It's nine o'clock.
- 1将
o'clock与24小时制一起使用。 在英语会话中，我们不将o'clock与24小时制一起使用。所以，你不会说✗ The train leaves at 14 o'clock.。相反，你会转换它：✓ The train leaves at 2 o'clock in the afternoon.或者干脆说2 PM。
- 1发音。 确保你发音清晰：/əˈklɒk/ (ə-KLOK)。它不是“oh clock”。它是一个流畅的单词。
Contrast With Similar Patterns
O'clock有一些竞争对手。让我们看看它与其他报时方式相比如何。O'clockvs. 数字时间（例如Four-fifteen）：O'clock只用于整点（4:00, 5:00）。一旦你有分钟，你就会转换成说数字。对于4:15，你会说four-fifteen。你不能说four o'clock and fifteen minutes。那太绕口了，听起来很奇怪。数字风格直接，同时给出小时和分钟。
O'clockvs.Half Past/Quarter Past： 这些是其他经典的、模拟的报时方式。Half past two意思是2:30。A quarter past two意思是2:15。你将这些用于特定的分钟标记（15、30和带有quarter to的45）。O'clock用于零分钟标记。可以这样想：o'clock是小时的顶端，half past是小时的底端。
O'clockvs.AM/PM： 这是一个很大的区别。O'clock不告诉你现在是早上还是晚上。8 o'clock可能在早上（早餐）或晚上（晚餐）。AM（从午夜到中午）和PM（从中午到午夜）解决了这个问题。8 AM是早餐时间。8 PM是电影时间。你可以将它们结合起来以求清晰，例如，“The meeting is at 2 o'clock p.m.”，但这有点多余。通常，你选择一个。2 PM在书写和数字语境中更常见。2 o'clock在口语中更常见，并且当上下文使其清晰时（例如，如果你已经在工作，2 o'clock显然意味着下午）。
Quick FAQ
我可以说“12 o'clock at night”吗？
是的，当然可以！那意味着午夜。你也可以说“12 o'clock noon”来表示中午。
o'clock是正式的还是非正式的？
它是中性的。你可以在任何情况下使用它，从工作面试到给朋友发短信。它是普遍理解和接受的。
为什么我们不直接说数字，比如“The time is 4”？
你可以，但这可能有点含糊。加上o'clock可以100%清楚地表明你正在谈论时间和确切的小时。它增添了一点修饰感。
Telling the Time with 'To Be'
| Subject | Verb | Number | Phrase |
|---|---|---|---|
|
It
|
is
|
1
|
o'clock
|
|
It
|
is
|
2
|
o'clock
|
|
It
|
is
|
3
|
o'clock
|
|
It
|
is
|
4
|
o'clock
|
|
It
|
is
|
5
|
o'clock
|
|
It
|
is
|
6
|
o'clock
|
|
It
|
is
|
7
|
o'clock
|
|
It
|
is
|
8
|
o'clock
|
|
It
|
is
|
9
|
o'clock
|
|
It
|
is
|
10
|
o'clock
|
Contractions
| Full Form | Contraction | Usage |
|---|---|---|
|
It is 1 o'clock
|
It's 1 o'clock
|
Common in speech
|
|
It is not 1 o'clock
|
It isn't 1 o'clock
|
Common in speech
|
|
It is not 1 o'clock
|
It's not 1 o'clock
|
Alternative contraction
|
Meanings
The phrase 'o'clock' is used to indicate that the time is exactly at the start of a specific hour, with zero minutes passed.
Exact Hourly Time
Used to state the current time when the minute hand is exactly on the twelve.
“It's 6 o'clock.”
“Is it 3 o'clock?”
Scheduled Events
Used to describe when a specific event starts or ends if it happens on the hour.
“The class is at 9 o'clock.”
“The store opens at 8 o'clock.”
Emphasis on Precision
Used with 'sharp' or 'exactly' to emphasize that an event must happen at that specific moment.
“Be there at 5 o'clock sharp!”
“It is exactly 12 o'clock.”
Reference Table
| 数字时间 | 英语怎么说 | 含义 | 使用示例 |
|---|---|---|---|
|
1:00
|
One o'clock
|
一点整
|
The meeting is at "one o'clock".
|
|
5:00 am
|
Five am
|
凌晨/清晨五点
|
I wake up at "five am".
|
|
5:00 pm
|
Five pm
|
下午五点
|
Dinner is at "five pm".
|
|
2:15
|
Two fifteen
|
两点十五分
|
My class starts at "two fifteen".
|
|
7:30
|
Seven thirty
|
七点三十分
|
Let's meet at "seven thirty".
|
|
10:05
|
Ten oh five
|
十点零五分
|
The bus arrives at "ten oh five".
|
|
12:00 am
|
Midnight
|
半夜十二点
|
The store closes at "midnight".
|
|
12:00 pm
|
Noon
|
中午十二点
|
Lunch is at "noon".
|
正式程度
The meeting shall commence at five o'clock. (Meeting someone)
It's 5 o'clock. (Meeting someone)
See ya at 5. (Meeting someone)
Catch you at 5 bells. (Meeting someone)
英语时间表达图解
整点时间
- 3:00 Three o'clock
- 7:00 Seven o'clock
带有分钟
- 4:15 Four fifteen
- 6:30 Six thirty
上午 / 下午
- 早上 AM (e.g., 8 AM)
- 下午/晚上 PM (e.g., 8 PM)
特殊时刻
- 半夜 12:00 Midnight
- 中午 12:00 Noon
12小时制 vs. 24小时制 (口语习惯)
如何说出时间
是整点吗 (例如 1:00, 5:00)?
需要区分早上还是下午吗?
时间表达分类
整点
- • One o'clock
- • Six o'clock
- • Ten o'clock
带分钟
- • Two fifteen
- • Four thirty
- • Seven oh five
早晚区分
- • Seven am
- • Nine pm
- • Eleven am
特殊词汇
- • Noon
- • Midnight
按水平分级的例句
It is 1 o'clock.
It is 1:00.
It's 2 o'clock.
It is 2:00.
It is 12 o'clock.
It is 12:00.
Is it 5 o'clock?
Is it 5:00?
It isn't 4 o'clock yet.
It is not 4:00 yet.
The bus comes at 8 o'clock.
The bus arrives at 8:00.
Is it exactly 9 o'clock?
Is it exactly 9:00?
We have tea at 4 o'clock.
We drink tea at 4:00.
The movie starts at 7 o'clock sharp.
The movie starts exactly at 7:00.
I thought it was 6 o'clock already.
I believed it was 6:00.
Can we meet at 10 o'clock tomorrow?
Is 10:00 tomorrow okay?
It was nearly 11 o'clock when he left.
It was almost 11:00.
The deadline is 5 o'clock this afternoon.
The deadline is 5:00 PM.
By 12 o'clock, the sun was high in the sky.
At noon, the sun was high.
I'll be there by 8 o'clock, provided the train is on time.
I will arrive by 8:00.
Is the appointment at 2 o'clock or 3 o'clock?
Which hour is the appointment?
The clock struck 12 o'clock, signaling the end of the year.
It became midnight.
He insisted on meeting at 6 o'clock, despite the early hour.
He wanted to meet at 6:00.
Should the meeting conclude by 4 o'clock, we can catch the early train.
If we finish by 4:00...
The bells chime every hour, most loudly at 12 o'clock.
The bells ring at noon/midnight.
The shift from the sundial to the mechanical 'o'clock' revolutionized labor.
The change in time-telling changed work.
At the stroke of 9 o'clock, the stock market opened with a frenzy.
Exactly at 9:00, trading began.
One might argue that 'o'clock' is becoming a vestigial phrase in the digital age.
People might say the phrase is dying out.
The curfew was strictly enforced from 10 o'clock onwards.
The curfew started at 10:00.
容易混淆
Learners say 'It's 3 hours' instead of 'It's 3 o'clock'.
Learners use both at the same time.
Using '12 o'clock' can be confusing—is it day or night?
常见错误
It's 3:30 o'clock.
It's 3:30.
It's 3 oclock.
It's 3 o'clock.
Is 3 o'clock.
It's 3 o'clock.
It's 13 o'clock.
It's 1 o'clock.
At 5 o'clock AM.
At 5 AM / At 5 o'clock.
It's 5 of clock.
It's 5 o'clock.
The meeting is 5 o'clock.
The meeting is at 5 o'clock.
It's 12 o'clock in the night.
It's midnight / It's 12 o'clock.
I'll arrive at 14 o'clock.
I'll arrive at 2 o'clock.
The clock struck 5:00 o'clock.
The clock struck 5.
句型
It's ___ o'clock.
Is it ___ o'clock yet?
The ___ is at ___ o'clock.
I'll be there at ___ o'clock sharp.
Real World Usage
Meet at 6 o'clock?
I can be here at 9 o'clock tomorrow.
The next train is at 11 o'clock.
Math class is at 1 o'clock.
Your appointment is at 4 o'clock sharp.
Live stream starts at 8 o'clock!
结合你的日常生活来练习
I wake up at seven am,
I eat dinner at six pm.
有分钟时不要用 'o'clock'
分钟是单数时用 'oh'
two oh five 听起来非常自然。标准是 12 小时制
语境是你的好帮手
Smart Tips
Write the number as a word instead of a digit.
Just say the number and skip 'o'clock' entirely.
Add the word 'exactly' before the number.
Look at the minute hand. If it's not at the very top, don't use it.
发音
The 'o' sound
The 'o' in o'clock is a very short 'schwa' sound /ə/.
Linking
The 's' in 'It's' links to the number. 'It's-eight o'clock'.
Falling intonation
It's four o'clock. ↘
A standard statement of fact.
Rising intonation
Is it four o'clock? ↗
Asking a question.
记住它
记忆技巧
O'clock is for the 'O' on the clock—the zero minutes!
视觉联想
Imagine a big wall clock where the minute hand is a giant 'O' pointing straight up at the 12. This 'O' stands for O'clock.
Rhyme
When the hand is at the top, 'o'clock' is where you stop.
Story
A king named Hour only liked whole numbers. He would only eat at 1 o'clock, 2 o'clock, and 3 o'clock. If a servant brought food at 1:05, the king said, 'That is not an o'clock time!'
Word Web
挑战
Look at a clock every hour today. When the minute hand hits 12, say the time out loud: 'It's [Number] o'clock!'
文化笔记
In the UK, people often say 'five o'clock' for tea time, which is a traditional light meal.
Americans use 'o'clock' frequently but will often just say the number (e.g., 'It's five') in casual conversation.
In international business, people often use the 24-hour clock to avoid confusion between time zones, so 'o'clock' is used less often than '14:00'.
The phrase is a contraction of the Middle English 'of the clokke'.
对话开场白
What time do you wake up?
What time does your favorite show start?
When is our meeting tomorrow?
If the party starts at 8 o'clock, what time will you arrive?
日记主题
常见错误
Test Yourself
The class starts at nine _____.
O'clock 用于表示整点时间。Find and fix the mistake:
The party begins at seven o'clock pm.
o'clock 和 am 或 pm 连用。要么说 'seven o'clock'，要么说 'seven pm'。Choose the correct sentence:
am 或 pm 放在最后面。翻译成英语：'现在是下午四点十分。'
Answer starts with: ["I...
pm。Score: /4
练习题
8 exercisesChoose the correct time phrase:
It is 7 ___.
Find and fix the mistake:
It is 5:15 o'clock.
o'clock / is / it / 9
1:00
Pick the correct question:
It ___ 10 o'clock.
Choose the formal way to say 8:00:
Score: /8
Practice Bank
12 exercisesWe usually have lunch at one _____.
The movie starts at seven o'clock fifteen.
Choose the correct sentence:
翻译成英语：'银行早上九点开门。'
将单词连成句子：
将数字时间与读音匹配：
The show starts at eight forty-five _____.
I have to leave at fifteen hundred.
Choose the correct sentence:
翻译成英语：'我必须在半夜十二点到家。'
将单词连成句子：
将术语与其含义匹配：
Score: /12
常见问题 (8)
No, you should not. We don't say `15 o'clock`. Use numbers 1-12 only.
It is always `o'clock` with an apostrophe. The apostrophe shows that letters (f, t, h, e) are missing from 'of the'.
No. In casual conversation, you can just say `It's five`. `O'clock` is used for clarity or emphasis.
You can say `12 o'clock`, but it's better to say `noon` (day) or `midnight` (night).
It's grammatically okay, but native speakers find it redundant. Just say `5 AM` or `5 o'clock`.
It is neutral. You can use it in a business meeting or with your family.
It's an old way of saying 'of the'. So '7 o'clock' means '7 of the clock'.
Never. `O'clock` is strictly for zero minutes.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
en punto
Spanish uses a plural verb ('son') for hours, English uses singular ('it is').
pile / heures
French requires the word for 'hours' every time.
Uhr
German uses 'Uhr' even when minutes are included (e.g., 'drei Uhr fünf').
時 (ji)
Japanese uses a suffix (counter) rather than a separate phrase.
تماماً (tamaman)
Arabic uses an adjective for 'exactly' rather than a clock-specific phrase.
点 (diǎn)
Chinese uses 'point' as the measure word for hours.
