Prepositions of time – in, on, at

Prepositions of time – in, on, at are used to specify the time. We normally use:

IN for MONTHS, YEARS, SEASONS, DECADES, and CENTURIES

ON for DAYS and DATES

AT for a SPECIFIC TIME

With IN, we use the following time expressions:

• parts of the day – in the morning, in the afternoon, in the evening
• months – in February, in August
• seasons – in spring, in summer, in autumn, in winter
• years – in 2017, in the 1990s

With ON, we use the following time expressions:

• days of the week – on Monday / on Sundays, on Monday morning
• dates – on 27th October
• specific days – on my birthday, on New Years’s Eve

With AT, we use the following time expressions:

• specific time – at 5 pm, at 11:30
• points of the day – at noon, at night
• holidays and special days – at Christmas, at Easter
• at the weekend

Fill in the gaps with in, on or at

1. My birthday is ____ April.  

2. Tom never works ____ weekends. 

3. I like to watch films ____ the evening. 

4. My grandma was born ____ 1962. 

5. The meeting is ____ 3 o’clock. 

6. We always go skiing ____ winter. 

7. We have basketball training ____ Tuesdays and Thursdays. 

8. What time do you usually go to bed ____ night? 

9. We have to get up ____ sunrise tomorrow. 

10. This shop is always closed _____Sundays.

Key:

1. in, 2. at, 3. in, 4. in, 5. at, 6. in, 7. on, 8. at, 9. at, 10. on

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