Prepositions of Time: Expressions Using AT, ON, and IN

Prepositions are the parts of speech that can be confusing and challenging at times. Prepositions are tiny words which are the essential parts of our sentence formation. These tiny words pop up in every sentence, without which the sentences are incomplete. Prepositions are the terms which are used to locate the time, location, etc. of a noun. The most commonly used prepositions are at, in, and on. For a lot of people, these prepositions are confusing and are used incorrectly. Read the below article to check the examples of the usage of these terms.

Usage of At, In, and On

Terms like at, in and on are used in various instances and are mostly used to express time. The preposition ‘at’ is used to refer to a very narrow or specific time.

The preposition ‘on’ is used to refer to a slightly broader time of a particular day or date. Such as on Sunday, on May 25th.

The preposition ‘in’ refers to the broadest time period, such as a month or a year, decade, etc.

Before using these prepositions, it is essential to understand the usage of these prepositions and then use them correctly. Refer to the below-provided examples of the usage of these terms.


specific time

at 7:00

I will see you at 7:00!

at 10:30

The party starts at 10:30.

at noon

I shall meet you at noon.

at midnight

I will be there at midnight.


at the moment

He is busy at the moment.

at the same time

They both arrived at the same time.

at this time

You are here at this time?

at that time

At that time, I was out of station.

at some point

At some point, I will buy this car.

at any time

Don’t go to her place at any time.

at sunrise

I will meet you at sunrise.

at sunset

This place looks beautiful at sunset.

at lunchtime

I will see you at lunchtime.

at dinnertime

I will talk to you at dinnertime.

at suppertime

He might come to my place at suppertime.

at night

She called me at night.


one day

on Sunday

The picnic is planned on Sunday.

one date

on May 18th

My birthday is on May 18th.

repetitive days


My dance classes are scheduled on Saturdays.

on Independence Day

I love watching the parade on Independence Day.

on your birthday

I will see you on your birthday.

on their anniversary

He gifted a puppy on their anniversary.

one day + time of day

on Friday morning

Do you want to join me for the party on Friday morning?

on Saturday afternoon

I told her on Saturday afternoon.

on Sunday evening

On Sunday evening, I will meet her.

on Monday night

Where did you go on Monday night?


on time

We submitted the project on time.

on the dot

The program started on the dot.

on the hour

The clock chimes on the hour.



in December

I am getting married in December.


in summer

in the summer

It is too hot in summer.

We can plan in the summer.


in 2019

They moved to the U.S. in 2019.


in the 1900s

The movies of the 1900s were amazing.

long periods

in the Middle Ages

This was done in the Middle Ages.


in the past

In the past, I used to live in this house.

in the future

In the future, I am planning to buy this car.

in a few days

I will come back in a few days.

in ten minutes

He is coming in ten minutes.

in the morning

I will meet you in the morning.

in the afternoon

He is sleeping in the afternoon?

in the evening

I am going to her place in the evening.

These are the most commonly used prepositions in our everyday conversations. We hope that the above mentioned usage of the prepositions of time will be helpful to you.

Frequently Asked Questions on Prepositions of Time

Which preposition can I use to refer to a particular day?

In order to refer to a particular day, you can use the preposition ‘on’. For example, I will meet you on Monday.

What do the prepositions at, in and on refer to?

The prepositions at, in , and on are used to refer to the time.