A Preposition Guide to IN-ON-AT
Your Guide to IN-ON-AT
In business communication, the prepositions in–on–at are among the most frequently used, especially when scheduling meetings, updating project timelines, or notifying a host about flight details. Mastering their correct usage requires understanding their specific applications. The table below highlights the common uses of in-on-at in the context of time and place, providing clarity for effective business interactions.
Here Is Your IN-ON-AT Preposition Toolkit
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In
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On
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At
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Time
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In months and years:
in January in 1975
During the day/night:
in the morning in the afternoon
in the evening
in the nighttime
In a time period:
in a second
in a minute
in two hours in a week/month
Miscellaneous:
in the meantime
in those days
in time
in time for…
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On days of the week:
on Monday on Tuesday
On specific dates:
on September 10th on 4 April 2015
On holidays:
on the 4th of July on Purim
on Independence Day
Miscellaneous:
on time on vacation
on vacation
on maternity leave
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At a specific time:
at five o’clock at 6:15
at noon
at midnight
at sunrise / at sunset
During the day/night:
at night
Miscellaneous:
at the moment at that time at first at last |
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Place
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In countries and cities:
in India in Madrid
In a specific room,
in a building or in an office:
in my office in the conference center
in the hall
Miscellaneous:
in a book |
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On a specific street:
on Marshall Ave. on Ha’Shalom Street
On the floors of a building:
on the second floor on the fourth floor
Miscellaneous:
on a page on-line on a website
on the left
on the right
on the way
to go on a trip
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At a specific address:
at 125 Maple Street at Newcomb Rd. #13
At an event:
at a party
at a conference
at the movies
at a meeting
Miscellaneous:
at home at work
at the office
at the station
at the door
at the top
at the bottom
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Practice Your IN-ON-AT Prepositions - Exercise 1 (anwer key at the bottom of the page)
Choose the correct answer:
a. Could you please leave it (on / at / in) the hall?
b. He wanted to discuss it (on / at / in) 9 o’clock this morning.
c. They said it should be here (on / at / in) time.
d. Let’s discuss it privately (on / at / in) my office.
e. They are located (on / at / in) number 64, Arlozorov.
f. It needs to be delivered to a company (on / at / in) Haifa.
g. We met (on / at / in) the summer of 1969 and have been friends since.
h. I saw him (on / at / in) the conference (on / at / in) Paris.
Practice Your IN-ON-AT Prepositions - Exercise 2 (anwer key at the bottom of the page)
Find the correct prepositions in each of the sentences below:
a. My office is ____ Yuval Street, ____ the 2nd floor.
b. I’d like to meet ____ 12.00 O’clock, ____ the restaurant.
c. They are located _____ the USA, , ____ Illinois, Chicago.
d. ____ first I wasn’t sure, but ____ those days you had no choice.
e. It’s ____ Thursday ____ half past two ____ the conference center.
f. Call me ____ the evening if you have to.
g. They’ll be here ____ a few minutes.
h. We started manufacturing ____ 1963 ____ our Munich plant.
Answer Key - Exercise 1
a. in
b. at
c. on
d. in
e. at
f. in
g. in
h. at, in
Answer Key - Exercise 2
a. on, on
b. at, in or at
c. in, in, in
d. At, in
e. on, at, in
f. in
g. in
h. in, in or at
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