Prepositions of time: 'at', 'in', 'on'

Prepositions of time: 'at', 'in', 'on'

Do you know how and when to use at, in and on to talk about time? Test what you know with interactive exercises and read the explanation to help you.

Look at these examples to see how we use at, in and on to talk about time.

At weekends, I love to go skiing.
In spring, the weather is warmer.
On Mondays, I work from home.
In the afternoon, I do activities.
On weekdays, I work until 12.
At 5 o'clock, I do two or three more hours of work.

Try this exercise to test your grammar.

Read the explanation to learn more.

Grammar explanation

We use the prepositions in, on or at to say when something happens.

at

We usually use at with clock times and mealtimes.

I get up at 6.30 a.m. and go for a run.
She doesn't like to leave the office at lunchtime.

We also use at with some specific phrases such as at the weekend and at night.

At the weekend, I can spend the days how I like.

We can also say on weekends or on the weekend. This is more common in American English.

We say at night when we mean all of the night. But we say in the night when we want to talk about a specific time during the night.

She's a nurse and she works at night.
The baby often wakes up in the night.

We use at with Christmas and other holidays that last several days.

The weather is very cold here at Christmas.
At Chinese New Year, many people go home to their families.

clock timesat 6 o'clock
at 9.30
at 13.00
mealtimes and breaksat breakfast time
at lunchtime
at dinner time
at break time
other time phrasesat night
at weekends/the weekend
at Christmas/Easter

in

We usually use in with parts of the day and longer periods of time such as months, seasons and years.

I usually relax in the evening.
In summer it's too hot to do anything.
I'm always really busy in December.

parts of the dayin the morning/afternoon/evening
monthsin January/February
seasonsin (the) spring/summer/autumn/winter
years, centuries, decadesin 2016
in the 21st century
in the 80s
other time phrasesin the past
in the future
in the last few years/months/weeks/days

on

We usually use on with days and dates.

On Fridays, I have a long lunch.
It's his birthday on 19 October.

dayson Monday/Tuesday etc.
on my birthday
on New Year's Day
dateson 30 July
on the second of August

Do this exercise to test your grammar again.

Average: 4 (578 votes)
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Submitted by Tony_M on Sat, 16/08/2025 - 10:55

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Hello,

- During/Over the course of the last five years, I've tried to learn how to ski for three days each winter.
- During/Over the last five years, I've tried to learn how to ski for three days each winter.
- I've tried to learn how to ski [for] three days each winter for five years.

Are these grammatically correct? Do they sound idiomatic to you?

Thank you

Hello Tony_M,

The sentences are correct. though I think the most natural way to say this would be with 'for': For the last five years...

During generally means happening within a particular time frame rather than over a period of time and so changes the meaning somewhat. Over and over the course of are OK.

 

Peter

The LearnEnglish Team

Hello again Peter,

Thank you very much.

  1. During my stay in Italy/during the 5 years I spent in Italy, I would try to learn how to ski for 3 days each winter. -> a detached period of time, time span;
  2. Over the course of the last 5 years, I’ve tried to learn how to ski for 3 days each winter. ->  a length of time up to now;
  3. Over the last 5 years, I’ve tried to learn how to ski for 3 days each winter. ->  a length of time up to now;
  4. I’ve tried to learn how to ski for the last five years each winter for 3 days. ->  a length of time up to now;
  5. I’ve tried to learn how to ski five years each winter for 3 days. ->  a length of time up to now.

    Is my understanding correct?

    Would you repeat 'for' twice in #4 (for the last 5 years, for 3 days)?

    Would #5 still be considered grammatical/natural?

Hello again Tony_M,

Yes, I agree with all of those.

I think the last sentence does need for before 'five years', however.

 

Peter

The LearnEnglish Team

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Submitted by MounirBr44 on Sun, 03/08/2025 - 16:42

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On July 18, 2023, I visited central France. In the mornings, I used to wake up late and leave my room at 7:30. I always managed to arrive at the training center right on time. At break time, I would grab a snack from one of the nearby restaurants.

In the evenings, I walked around until late at night. Over time, the city streets became so familiar to me that they felt like my own village, drawn in my mind with all their details.

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Submitted by Nelia16 on Wed, 30/07/2025 - 15:36

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  1. I had a lesson on Monday.
  2. I usually eat breakfast at noon.
  3. I watched movie in a big cinema.

Submitted by NabilaELM on Sun, 20/04/2025 - 11:52

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Hello! I'd like to ask if the following sentence is appropriate and why can't we use in with the the verb go in this case. 

" he went in a new school in London"

" he went at a new school in London"

thank you for your clarification

Hello NabilaELM,

The correct preposition here is 'to', so you need to say 'He went to a new school in London'.

The verb 'go' can be followed by 'into' when talking about physical entry, such as going into a building. When you want to say someone is a part of an educational institution we use 'go to': go to school, go to college, go to the British Council, go to yoga classes etc.

 

Peter

The LearnEnglish Team

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Submitted by Yornis on Sun, 12/01/2025 - 19:08

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Hello team,

I would be grateful if you could help me with the below.

According to dictionary.cambridge.org,

We use "at":

To refer to activities which involve a group of people:

Eg.

Were you at Lisa's party? ( also "at the cinema, at the theatre" )

Does the above mean saying "IN the cinema" and

"INSIDE the cinema" are wrong?

Thanks