Prepositions of Time and Place: In, On, At
📌 Contents
🎯 Lesson goal
In this lesson you learn to use the prepositions in, on and at 📖 correctly, both for time (when something happens) and for place (where something is). You will see the main differences 🧠 and you can practise straight away with the test at the bottom of the page! 🚀
⏰ Time: IN / ON / AT
| Preposition | When to use it | Example |
|---|---|---|
| IN | Months, years, centuries, seasons, parts of the day, long periods | in July, in 2020, in the morning 📅 |
| ON | Days of the week, exact dates, specific holidays | on Monday, on May 5th, on Christmas Day 📆 |
| AT | Exact times, specific moments of the day, holiday periods | at 7 a.m., at night, at the weekend ⏰ |
📌 Key examples:
- I was born in 1995.
- She has a meeting on Friday.
- We’ll meet at 6 p.m.
📍 Place: IN / ON / AT
| Preposition | When to use it | Example |
|---|---|---|
| IN | Inside a closed, 3D or limited space (cities, countries) | in the room, in a car, in London 🏙️ |
| ON | On a surface, on public transport (where you can walk around) | on the table, on the wall, on the bus 🚌 |
| AT | At an exact point, exact addresses, places with a purpose or events | at the door, at the station, at home 📍 |
📌 Key examples:
- The keys are on the table.
- He’s in the kitchen.
- Let’s meet at the café.
🧩 Summary – Time vs Place
🕒 Prepositions of time
| Preposition | Types of time | Examples |
|---|---|---|
| IN | Months, years, centuries, parts of the day | in July, in 1990, in the evening |
| ON | Days, specific dates | on Monday, on 25th December |
| AT | Clock times, exact moments | at 6 p.m., at noon, at night |
📍 Prepositions of place
| Preposition | Type of position | Examples |
|---|---|---|
| IN | Inside a space (three-dimensional / city) | in a room, in a city |
| ON | On a surface / floor / vehicle | on the floor, on the screen, on the bus |
| AT | Exact point / specific position | at the door, at work, at the station |
❓ Frequently asked questions
- Can I say “at Monday”?
➔ ❌ No. Always use on Monday for days of the week. - “In the weekend” or “at the weekend”?
➔ ✔️ It depends on the variety of English: British English says at the weekend, while American English often says on the weekend. - Which preposition do we use for “the table”?
➔ ✔️ Use on the table (surface). - “In the bus” or “on the bus”?
➔ ✔️ We say on the bus because big public vehicles where you can walk around (buses, trains, planes) take on. Use in for small private vehicles (e.g. in the car, in a taxi).
🚫 Common mistakes to avoid
| Mistake ❌ | Correct ✅ |
|---|---|
| I was born on 1998. | I was born in 1998. (Years ➔ in) |
| She is at the room. | She is in the room. (Inside a space ➔ in) |
| The book is in the table. | The book is on the table. (Surface ➔ on) |
📌 Remember the golden rule
- ✔️ IN ➔ inside, general or wide (3D spaces, months, years, cities)
- ✔️ ON ➔ on a surface or specific (days, dates, surfaces, public transport)
- ✔️ AT ➔ exact point or exact time (clock times, points in space, street addresses)
Practise now to remember the logic of In, On and At! ✨
Gap Fill & Translation Exercises
Test yourself! In the first 15 sentences, fill in ‘in’, ‘on’ or ‘at’. In the last 5, say the sentence in English using the hint in brackets.