Prepositions of Time

Lesson Content

Prepositions of time like in, on, and at help us talk about when something happens.

At

Use at for precise times.

at 3 o'clock
at 10:30 AM
at noon
at dinnertime
at bedtime
at sunrise
at the moment

On

Use on for days and dates.

on Sunday
on Tuesdays
on 6 March
on 25 Dec. 2010
on Christmas Day
on my birthday
on New Year's Eve

In

Use in for months, years, centuries and long periods.

in May
in summer
in the summer
in 1990
in the 1990s
in the next century
in the Ice Age
in the past/future

Check Your Understanding

Question 1 of 3

My birthday is ___ October.

in

on

at