AT - ON - IN - Prepositions of Time

English Grammar Rules


We use AT with specific times (hour / minutes):

Midnight (and midday) is a specific hour which is why we use AT.

12am = midnight
12pm = midday / noon

We use AT for a holiday period of two or more days:


We use ON for specific days and dates:

Remember that for dates, we use ordinal numbers.

E.g. the First of September (not the one of September)


We use IN for specific months, years, seasons, centuries and lengths of time.


The New Zealand National day is in February.
(I don't mention the day - only the month)

The New Zealand National day is on February 6th.
(I mention the day - the order is not important)

Prepositions of Time At On In

The Weekend

Sometimes you will hear ATthe weekend and sometimes ON the weekend.

They are both correct. ON the weekend is used in United States.

We don't use Prepositions

Remember! We do not use at, on, in or the with the following expressions:

Next activity

If you would like to play an interactive game to practice these Prepositions of Time, visit here: Prepositions of Time (At, On, In) Game.

NEW: Download our free Prepositions of Time (At, On, In) Worksheet (in PDF).
You can check the answers to this worksheet here: Prepositions of Time (At, On, In) Answers.

If you would like a list of other Prepositions, visit here: Prepositions List

You may also want to learn about Prepositions of Place

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