Prepositions can also be used to show when something happened.
The prepositions at, on, and in
We use at for specific times.
For example:-
I start work at 7.00 a.m.
I don't work at night.
We use on for specific days and dates .
For example:
My birthday is on Monday.
We're having a party on 7th September.
We also use on for some special days.
For example:
On Christmas day.
We use in for nonspecific times during a day, a month, a season, or a year.
For example:
In summer it's too hot to work.
I started this web site in 1999.
She woke up in the night.
More prepositions of time
Prepositions of Time |
Examples |
|---|---|
Point in Time |
|
at |
6 o'clock midnight the latest |
on |
Saturday April 10th Christmas Day |
by |
(indicates a deadline = at the latest) the end of July 10 o'clock tomorrow |
till / until / up to |
(indicates an end point) March 10 o'clock tomorrow next week |
since |
(indicates a beginning point in time) April 10th March |
Length of Time |
|
in |
July the autumn the morning the middle of ……. |
at |
night the weekend |
during |
the meeting the lesson |
for |
two days twelve months |
throughout |
August the project |