On or In Month 

"On" or "In Month" in the English grammar

Which One Should Be Used?

Both "on + month" and "in + month" are grammatically correct. "On + month" is used to refer to a specific day in a month while in + month" is used to refer to a span of time covering a whole month.

On + Month

When referring to an action or event that occurred on a specific day or date of the month, we typically use "on + month" followed by the exact date. For example:

Example

Halloween is on October 31st.

I met him on February 5th.

I was born on December.

When the specific date is not specified and only the month is mentioned, we cannot use "on".

In + Month

The preposition "in" is used to refer to longer periods of time, such as years, centuries, and months. When referring to a month, "in + month" is a more common phrase than "on + month" which is typically used to refer to a specific day within the month.

Example

The documents were collected in January.

The yearly company meeting is in February.

I have a job interview in March 15th.

When the specific date is specified, we cannot use "in".

Quiz:


1.

If you want to describe a season within a month, which preposition should you use?

A

On

B

In

C

At

D

By

2.

Which sentence is correct?

A

The concert will be on September 15th.

B

The festival is held on August.

C

The project deadline is in October 20th.

D

My exams are on December.

3.

Which of the following sentences is incorrect?

A

The project will be completed in March.

B

We will celebrate Thanksgiving in November 28th.

C

The wedding is on July 4th.

D

My exams are in December.

4.

Reorder the following words to make a correct sentence.

25th
we
december
.
meet
will
on
5.

Fill in the blanks using "on" or "in":

The meeting will be held

February 20th.

The new semester starts

September.

We usually go on vacation

July.

The company picnic will be

June 12th.

6.

Fill out the table:

The event will be held ___ June 15th.

We plan to travel ___ March.

My birthday is ___ July 3rd.

The document was submitted ___ October.

We celebrate Thanksgiving ___ November.

in
on

Comments

(3)
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Defrianus Wadu
Apr 2025
Good and brief explanation as well as the quiz. It helps me a lot in understanding the material. Keep doing the good works. God bless.
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Gujram faridi
Feb 2025
I would like to know my due
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Keurys Emanuel de la rosa Abreu
Apr 2024
Hola
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