Prepositions of Time: at, in, on
We use:
-
at for a PRECISE TIME
-
in for MONTHS, YEARS, CENTURIES and LONG PERIODS
-
on for DAYS and DATES
at |
in |
on |
PRECISE TIME |
MONTHS, YEARS, CENTURIES and LONG PERIODS |
DAYS and DATES |
at 3 o'clock |
in May |
on Sunday |
at 10.30am |
in summer |
on Tuesdays |
at noon |
in the summer |
on 6 March |
at dinnertime |
in 1990 |
on 25 Dec. 2010 |
at bedtime |
in the 1990s |
on Christmas Day |
at sunrise |
in the next century |
on Independence Day |
at sunset |
in the Ice Age |
on my birthday |
at the moment |
in the past/future |
on New Year's Eve |
Look at these examples:
-
I have a meeting at 9am.
-
The shop closes at midnight.
-
Jane went home at lunchtime.
-
In England, it often snows in December.
-
Do you think we will go to Jupiter in the future?
-
There should be a lot of progress in the next century.
-
Do you work on Mondays?
-
Her birthday is on 20 November.
-
Where will you be on New Year's Day?
Notice the use of the preposition of time at in the following standard expressions:
Expression |
Example |
at night |
The stars shine at night. |
at the weekend* |
I don't usually work at the weekend. |
at Christmas*/Easter |
I stay with my family at Christmas. |
at the same time |
We finished the test at the same time. |
at present |
He's not home at present. Try later. |
Notice the use of the prepositions of time in and on in these common expressions:
in |
on |
in the morning |
on Tuesday morning |
in the mornings |
on Saturday mornings |
in the afternoon(s) |
on Sunday afternoons |
in the evening(s) |
on Monday evening |
When we say last, next, every, this we do not also use at, in, on.
-
I went to London last June. (not in last June)
-
He's coming back next Tuesday. (not on next Tuesday)
-
I go home every Easter. (not at every Easter)
-
We'll call you this evening. (not in this evening)
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Name: Tien (Tory) TRAN
Email: TranTien29@gmail.com