A point → at
An exact time or a place treated as a point.
- at 7:30
- at the door
- at work
Free cheat sheet 04 · B1 and above
Prepositions for Time and Place
At, on or in? Picture the time or place.
These three small words often show how closely you are looking: a point, a day or surface, or a wider space or period.
What to use—and when
Make the choice by meaning.
A day, date or surface → on
A position on the calendar or on a surface.
- on Monday
- on 6 May
- on the table
A space or longer period → in
Inside an area, month, year or part of the day.
- in the room
- in September
- in 2026
- in the morning
Understand the choice
Time: exact moments, days and wider periods
At, on and in are useful patterns, but common expressions have their own habits.
| Preposition | Use | Examples |
|---|---|---|
| At | Clock times and some fixed time expressions | at six · at noon · at midnight · at night |
| On | Days, dates and named parts of a particular day | on Friday · on 6 May · on Monday morning |
| In | Months, years, seasons and general parts of a day | in June · in 2026 · in winter · in the evening |
| No preposition | Before many expressions with this, next, last and every | this morning · next Friday · last year · every Monday |
- In British English, “at the weekend” is common; American English commonly uses “on the weekend”.
- “In an hour” can mean one hour from now: “I’ll call in an hour.” It can also describe time needed: “I finished it in an hour.”
- “On time” means at the scheduled time. “In time” means early enough for something: “We arrived in time to get a seat.”
Understand the choice
For, since, during, by and until: different jobs
These words can all involve time, but they do not mean the same thing.
| Word | Meaning | Example |
|---|---|---|
| For | Duration: how long | We talked for an hour. |
| Since | Starting point for a situation reaching a later reference time | I’ve lived here since 2024. |
| During | Within a named event or period; followed by a noun phrase | My phone rang during the meeting. |
| While | Two events linked through a clause | My phone rang while I was speaking. |
| By | A deadline: no later than | Please send it by Friday. |
| Until | Continuation up to a point | I’ll be away until Friday. |
| From…to… | Start and end points | The shop opens from nine to five. |
- “During two hours” is not the normal way to give duration. Use “for two hours”. “During the two-hour meeting” identifies the period.
- Compare “I’ll finish by six” with “I’ll work until six”. Finishing has a deadline; working continues up to that time.
Understand the choice
Place and movement: where are you looking from?
A place can be viewed as a meeting point, an activity location or the inside of a space.
At: a point or activity location
Use at when the place is a point on a route, a meeting place or the location of an activity.
- Meet me at the entrance.
- She’s at work.
- We’re at the cinema.
In: inside a space or area
Use in for rooms, enclosed spaces, cities and countries.
- The keys are in my bag.
- She’s in the kitchen.
- I live in Brighton.
On: a surface, line or some transport
Use on for surfaces and learn common travel expressions together.
- The book is on the table.
- The picture is on the wall.
- I’m on the bus, but Ana is in a taxi.
To / into / onto: movement
To gives a destination. Into highlights entering. Onto highlights moving to a surface.
- I’m going to the station.
- She walked into the room.
- The cat jumped onto the table.
Understand the choice
Learn the words that belong together
Some prepositions depend on the verb or adjective. A picture of time or place will not explain all of them.
| Chunk | Example |
|---|---|
| depend on | It depends on the weather. |
| interested in | I’m interested in photography. |
| good at | She’s good at explaining things. |
| listen to | I listen to podcasts. |
| wait for | I’m waiting for the bus. |
| worry about | Try not to worry about every mistake. |
| look forward to + noun / -ing | I’m looking forward to meeting you. |
- The to in “look forward to” is a preposition, so use meeting, not meet. This differs from the infinitive in “I want to meet you”.
The quick check
Keep this beside you.
- Exact time or meeting point? → at
- Day, date or surface? → on
- Inside a space or longer period? → in
Notice the difference
A small change can change the meaning.
Meeting point, day, exact time.
Workplace as a point; location inside a room.
Common slips
A useful fix for next time.
Instead ofin Monday
Useon Monday
Named days use on.Instead ofI arrived to London.
UseI arrived in London.
Arrive in a city or country; arrive at a smaller point such as a station.