In, On and At: Prepositions of Place and Time

Choose in, on or at to complete each sentence. Some sentences describe place; others describe time.

Remember the patterns

PLACE in a room / on the table / at the station

TIME in October / on Monday / at six o’clock

These are common patterns. Learn them through examples, because there are some fixed expressions and exceptions.

In is often used for spaces or areas, months, years and parts of the day: in the kitchen, in Brighton, in 2026, in the afternoon.
On is often used for surfaces, days and dates: on the floor, on Tuesday, on 14 October.
At is often used for particular points and exact times: at the door, at the bus stop, at 8.30.