Confusing Prepositions of Time – In, On, At

We often use in, on, at when we talk about different time periods. The table below shows when to use in, on and at.

In

Months

In January

Seasons

In summer

A year

In 1999

Part of the day

In the morning, in the afternoon, in the evening

On

Days of the week

On Tuesday

Date

On 3rd August

On specific festival days

On Easter Sunday, On New year’s Eve

 At

Part of the day

At night

The weekend

At the weekend

Time of day

At 3pm

Holiday periods

At Christmas, At Easter

Click on the links before to learn more about Prepositions

Introduction

Common Prepositions of Place and Direction

Confusing Prepositions of Place – In, On, At

Other Time Expressions with Prepositions and Adverbs