Prepositions of Time

1. Use of ‘in

We use​​ in​​ with:

 

Months

in September

in May

Years

in 1996, in 1976

in 2004, in 2054

Seasons

in summer, in winter

in spring, in autumn

Centuries

in the 17th​​ century

in​​ the 21st​​ century

in the Bronze Age

Main parts of the day

in the morning

in the afternoon

in the evening

 

2. Use of ‘on

We use​​ on​​ with:

 

Days​​ (especially with the word ‘day’)

on Monday, on Friday

on weekdays

on Thursday morning

on a good day

on Christmas​​ Day,​​ 

Dates

on 16th​​ September

on 30th​​ October

on the fourth of May

 

3. Use of ‘at’

We use​​ at​​ with:

 

Times

at 9am

at half past eleven

at 3 o’clock

A point of time

at the start

at the beginning/end

at midnight

at noon, at night

at lunch time

Special​​ days​​ (without the word ‘day’)

at Christmas

at Easter

at the weekend

Expressions

at first, at last, at once, ect.

 

4. In, during, while

In​​ and​​ during​​ often mean the same:

 in​​ summer =​​ during​​ summer

 in​​ the night =​​ during​​ the night

 

During​​ emphasizes the​​ duration:

 It rained every day​​ during​​ the holidays.

 

Both​​ while​​ and​​ during​​ refer to duration but compare:

 

During + noun

 

during​​ the film

during​​ the break

While + subject + verb + object

 

while​​ we were watching the film

while​​ I was having a break

 

 

5.​​ Use of ‘by

By​​ means ‘no later than’.

 Applications to be received​​ by Friday the 20th​​ June.​​ (= on or before Friday, not later than Friday the 20th​​ June.)

 

by​​ the end of the year /​​ by​​ 2pm on Tuesday /​​ by​​ Sunday morning /​​ by​​ now /​​ by​​ the time you arrive home

 

 

6. Use of ‘until

Until​​ (or​​ till) refers to the​​ duration​​ of an activity and show​​ how long​​ something will continue. It means that something continues until a moment in the future.

 

 I will be in a meeting​​ until​​ four o’clock this afternoon.​​ (=the meeting​​ will continue until four, it will stop at four o’clock)

 

until​​ everyone arrives

until​​ we get home

until​​ the morning

 

 

7. Use of ‘for, in’

In​​ shows​​ how quickly​​ something happens (how long it takes to do something).

Dad will come home​​ in four days.​​ 

The​​ train journey finished​​ in an hour.

 

For​​ shows the​​ duration​​ of an action (how long in lasts):

 We stayed in Birmingham​​ for 2 days.

 He went to Tibet​​ for August.

 

 

8. Expressions

on time​​ = punctual, exact time

in time​​ = ​​ ok time, not late but almost late

in​​ the end​​ = finally

at the end (of something)​​ = when something finishes​​ 

 

at

In

on

at midnight

at noon

at lunch time

at dusk/dawn

at the same time

at present

at the time

at last

at the end

at night

in the morning

in the afternoon

in the evening

in half an​​ hour

in a few minutes

in a moment

in a second

in time

in the present

in the past

on Wednesday afternoon

on Sunday evening

on a fine day

on my birthday

on the day of the wedding

on the day of something

on time

On New Year’s Day

on his anniversary