Prepositions of time are words that help us describe when something happens, how long it lasts, or the time relationship between events. They connect time expressions (such as dates, hours, or periods) to the rest of the sentence.
Some prepositions refer to a specific point in time, while others describe duration, limits, sequence, or periods that continue over time. Therefore, understanding how these prepositions work will help you speak and write about schedules, routines, deadlines, and past events more accurately.
Prepositions of Time Table
The table below shows the most common prepositions of time, their typical uses, and example sentences.
| Preposition | Use | Examples |
|---|---|---|
| at | Exact times or specific moments | at 6:00 • at noon • at midnight |
| in | Months, years, seasons, long periods, parts of the day | in July • in 2025 • in the morning |
| on | Days and specific dates | on Monday • on June 12th |
| by | Deadline (before or not later than a time) | Finish the report by Friday. |
| from | Starting point in time | The meeting runs from 9 a.m. |
| to | Ending point in time | The meeting runs from 9 to 11. |
| for | Duration of time | She studied for two hours. |
| away | Time remaining before something happens | The holidays are still weeks away. |
| beyond | Later than a certain time or limit | The discussion continued beyond midnight. |
| about | Around or approximately a time | The train arrives about noon. |
| throughout | During the whole period | It rained throughout the night. |
| into | Continuing to a later point in time | The party went into the night. |
| through | From beginning to end of a period | She worked through the night. |
| past | After a certain time | It was already past midnight. |
| during | Within a period when something happens | He fell asleep during the movie. |
| since | From a point in the past until now | She has lived here since 2018. |
| until | Up to a certain time limit | Stay here until I return. |
| before | Earlier than a certain time | Finish this before lunch. |
| after | Later than a certain time | We met after the meeting. |
Some prepositions describe a point in time (at, on, by), others describe periods or duration (for, throughout, during), and others show time relationships between events (before, after, since, until).
Prepositions in on at
The prepositions in, on, and at are very common when we talk about time. We use in for longer periods like months, years, seasons, and parts of the day.
Examples: in May, in 2025, in summer, in the morning.
We use on for days and dates.
Examples: on Monday, on July 10th, on my birthday.
And we use at for exact times or specific moments.
Examples: at 8:00, at noon, at midnight.

There are also a few special cases. In British English, people usually say at the weekend, while in American English people often say on the weekend. With holidays, we often say at Christmas, at Easter, or at New Year, but on Christmas Day or on Easter Sunday when we mean the exact day. Another exception is at night, even though we say in the morning and in the afternoon.
Exercises
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Exercises on Prepositions in on at
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