Spoken English · Guides · October 30, 2026 · 13 min read

Prepositions of time and place: in, on, at with clear rules and examples

A city map with a pin, a calendar and a clock showing in, on and at

The prepositions in, on and at follow one simple pattern, for both time and place: in is for big or general things, on is for medium-sized, more specific things, and at is for small, exact points. For time: in 2026, in July, in the morning → on Monday, on 5 May → at 7 o’clock, at noon. For place: in Brazil, in the kitchen → on the table, on Oak Street → at the bus stop, at 25 Oak Street. Below are the rules, the exceptions you need to learn by heart and the prepositions you use when giving directions in a city.

The pyramid: from big to small

Time Place
in (big, general, inside) years, months, seasons, centuries, parts of the day countries, cities, rooms, closed spaces
on (medium, a surface or a line) days and dates surfaces, streets, floors, transport you can stand in
at (small, an exact point) clock times, exact moments addresses, points, events, buildings as places of activity

I was born in 1995, in March, on the 14th, at 6 a.m.
I live in Brazil, in São Paulo, on Rua Augusta, at number 120.

In, on, at for time

In

Use in for longer periods.

Use Examples
years in 2026, in 1999
months in January, in December
seasons in summer, in (the) winter
decades and centuries in the 1990s, in the 21st century
parts of the day in the morning, in the afternoon, in the evening
a period of time in the future (“after”) in five minutes, in two weeks, in a year
how long something takes I finished the book in three days.

On

Use on for days and dates.

Use Examples
days of the week on Monday, on Fridays
dates on 3 May, on May 3rd, on the 21st
special days on my birthday, on New Year’s Day, on Christmas Day
a day + part of the day on Monday morning, on Friday night
weekend (US) on the weekend (UK: at the weekend)

Notice: in the morning, but on Monday morning. When the day is mentioned, on wins.

At

Use at for exact times and short moments.

Use Examples
clock times at 7 o’clock, at 9:30, at half past six
exact moments at noon, at midnight, at sunrise, at sunset
night at night
holiday periods at Christmas, at Easter (the whole period)
weekend (UK) at the weekend
fixed expressions at the moment, at the same time, at the beginning, at the end, at lunchtime

No preposition

Don’t use in, on or at before this, next, last, every, today, tomorrow, yesterday.

In time or on time?

At the end or in the end?

In, on, at for place

In

Use in when something is inside an area or a space with borders.

Use Examples
countries, regions, cities, villages in Turkey, in Bali, in Hanoi, in a small village
rooms and buildings (inside) in the kitchen, in the office, in the shop
containers in a box, in my bag, in the fridge, in my pocket
closed spaces and areas in the garden, in the park, in the car, in a taxi
liquids and the air in the water, in the sky
books, pictures, lists in the newspaper, in the photo, in the picture
rows and lines in a queue, in the front row

On

Use on for surfaces and lines.

Use Examples
surfaces on the table, on the wall, on the floor, on the ceiling
streets and roads on Oak Street, on the main road (US: on; UK also in the street)
floors of a building on the second floor, on the ground floor
sides on the left, on the right
coasts and rivers on the coast, on the river (a city next to a river)
public transport and big vehicles on the bus, on the train, on a plane, on a ship, on a bike
screens and media on TV, on the radio, on the internet, on my phone, on the website
pages on page 20

Car or bus? In a car / in a taxi (small, you sit inside), but on the bus / on a train / on a plane (big, you can stand and walk).

At

Use at for a point or a place where an activity happens.

Use Examples
exact addresses at 25 Oak Street
points on a route at the bus stop, at the corner, at the traffic lights, at the end of the street
buildings as places of activity at the station, at the airport, at the cinema, at the hospital
events at a party, at a concert, at a meeting, at a wedding
home, work, school at home, at work, at school, at university
a person’s house or shop at my friend’s (house), at the dentist’s
tables, desks, doors at the table, at my desk, at the door

In or at a building?

Both are possible, with a small difference in meaning.

In most situations, at is the natural choice when you say where you are: I’m at the supermarket. Can I call you back?

Street vs address

Other prepositions of place

When you describe where something is, you need more than in, on, at.

Preposition Meaning Example
next to / beside at the side of The pharmacy is next to the bank.
near not far from Is there a cash machine near here?
between in the middle of two things The café is between the bakery and the post office.
opposite (US: across from) on the other side, facing The hotel is opposite the station.
in front of before, facing the front There’s a taxi in front of the hotel.
behind at the back of The car park is behind the supermarket.
above / over higher than There’s a light above the door.
under / below lower than The cat is under the table.
on the corner of where two streets meet It’s on the corner of Main Street and Park Road.

Watch out: in front of is not the same as opposite. If a shop is opposite the bank, there is a street between them. If a car is in front of the bank, it is right next to its front door.

Prepositions for giving directions

Directions use prepositions of movement too.

Preposition Example
along Go along this street for about 200 metres.
across Walk across the bridge / the square.
past Go past the church.
through Go through the park.
into / out of Go into the shopping centre. Come out of the station.
up / down Go up the hill. Walk down the street.
towards Walk towards the river.
to / until Go straight on to the end of the road. Walk until you see a bank.
around / round Go around the corner.

A typical short dialogue:

You: Excuse me, is there a pharmacy near here?
Local: Yes, there’s one on Green Street. Go straight along this road and turn right at the traffic lights.
You: Right at the lights, OK.
Local: Then walk past the supermarket. The pharmacy is on your left, next to a small café, opposite the bus stop.
You: Is it far?
Local: No, about five minutes on foot.
You: Great, thank you!

Useful phrases for asking and giving directions:

Fixed expressions to learn by heart

Some combinations don’t follow the pyramid. Just learn them as phrases.

With in With on With at
in bed on foot at home
in hospital (as a patient) on holiday (US: on vacation) at work
in the middle (of) on business at night
in the end (finally) on time at the moment
in time on purpose at first
in a hurry on sale at last
in my opinion on the phone at the same time
in the rain / in the sun on fire at least

Transport is another fixed group: by car, by bus, by train, by plane (how you travel), but on foot. With an article or a possessive, the preposition changes: by car, but in my car; by bus, but on the 8:15 bus.

Common mistakes with in, on, at

Each mistake shows the wrong version, the correct version and the reason.

A quick check while speaking

  1. Is it a clock time, an address, a point or an event? → at
  2. Is it a day, a date, a surface, a street or a floor? → on
  3. Is it a longer period, a city, a country or an inside space? → in
  4. Is there next, last, this, every? → no preposition

FAQ

Is it “at the weekend” or “on the weekend”?

Both are correct. At the weekend is British; on the weekend is American. Over the weekend works everywhere.

Is it “in the street” or “on the street”?

Both. In British English, in the street is common when you mean the open road area (children playing in the street). For addresses and locations, on is standard in both British and American English: a café on Main Street.

Do I say “in the corner” or “at the corner”?

In the corner = inside a room (a lamp in the corner of the room). At / on the corner = where two streets meet (the shop on the corner).

Is it “arrive in” or “arrive at”?

Arrive in a city or country (We arrived in Lima at night). Arrive at a building or place (We arrived at the hotel). Arrive home has no preposition.

Why do we say “in the morning” but “at night”?

There’s no logical reason; it’s a fixed expression. Learn the set: in the morning, in the afternoon, in the evening, at night.

Practise prepositions out loud

Prepositions are hard because you need them instantly, and there’s no time to think “is this a point or a surface?” in the middle of a sentence. Directions are the perfect practice: every sentence has on the left, at the corner, next to, opposite. In the conversation linked below this article, you ask Nomi in Nomto for directions in a city and explain the way to a place yourself. If you say turn left in the traffic lights or it’s in your right, Nomi corrects it and shows the natural version.

Try to use these in the conversation:

For more phrases for travel and everyday situations, see daily use English sentences.

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